POV-Ray : Newsgroups : povray.off-topic : Molecular biology Server Time
12 Oct 2026 22:40:22 EDT (-0400)
  Molecular biology (Message 51 to 100 of 465)  
<<< Previous 50 Messages Goto Latest 50 Messages Next 50 Messages >>>
From: Warp
Subject: Re: Molecular biology
Date: 8 Jan 2011 17:09:32
Message: <4d28e09c@news.povray.org>
andrel <byt### [at] gmailcom> wrote:
> A modern way would be to assume that there are 3 space dimensions and 
> one time, with a distance between 2 points defined by x^2+Y^2+z^2-ct^2 
> (though I am not sure if that was a necessary assumption, it has been a 
> long time).
> Investigate what happens if in this universe laws have to be invariant 
> for translation and rotation.
> That will give you Lorentz contraction and Maxwell's equations, and 
> light that propagates with lightspeed. But that is just maths and not 
> science. ;)

  AFAIK you have to assume c to be constant to all (inertial) observers
in order to deduce the Lorentz transformations, not the other way around.
(The deduction isn't actually all that complicated.)

-- 
                                                          - Warp


Post a reply to this message

From: Patrick Elliott
Subject: Re: Molecular biology
Date: 8 Jan 2011 17:20:34
Message: <4d28e332$1@news.povray.org>
On 1/8/2011 11:24 AM, Darren New wrote:
> Patrick Elliott wrote:
>> like reversable instructions (the idea being that its less costly to
>> "undo" some things, in terms of heat and power use, than to completely
>> replicate an entire set of processes, when only one step in the whole
>> process differs),
>
> FWIW, that's not at all what reversible computing is about. Reversible
> computing is a necessary prelude to quantum computing.
>
Actually, no, its not, really. The article I read on the subject was 
*purely* as a means to reduce the amount of switching needed, to reduce 
power usage and heat. It was an "alternate" design to existing ones, 
which would allow more speed, but at less cost. What, if anything, it 
had to do with quantum computing, from that article, would be rather 
unclear, since it quite literally never mentioned it at all.

-- 
void main () {
   If Schrödingers_cat is alive or version > 98 {
     if version = "Vista" {
       call slow_by_half();
       call DRM_everything();
     }
     call functional_code();
   }
   else
     call crash_windows();
}

<A HREF='http://www.daz3d.com/index.php?refid=16130551'>Get 3D Models, 
3D Content, and 3D Software at DAZ3D!</A>


Post a reply to this message

From: andrel
Subject: Re: Molecular biology
Date: 8 Jan 2011 18:03:02
Message: <4D28ED28.1000804@gmail.com>
On 8-1-2011 23:09, Warp wrote:
> andrel<byt### [at] gmailcom>  wrote:
>> A modern way would be to assume that there are 3 space dimensions and
>> one time, with a distance between 2 points defined by x^2+Y^2+z^2-ct^2
>> (though I am not sure if that was a necessary assumption, it has been a
>> long time).
>> Investigate what happens if in this universe laws have to be invariant
>> for translation and rotation.
>> That will give you Lorentz contraction and Maxwell's equations, and
>> light that propagates with lightspeed. But that is just maths and not
>> science. ;)
>
>    AFAIK you have to assume c to be constant to all (inertial) observers
> in order to deduce the Lorentz transformations, not the other way around.
> (The deduction isn't actually all that complicated.)

There are more ways to get the same result. You give the traditional 
method. The one I described here works the other way around. You assume 
a 4 dimensional universe and the rest follows from that. E.g. Maxwell's 
equations and a constant light speed are a property of that space, as 
strange as it sounds.
Note that it is all maths until the moment that you postulate (or 
observe) that our universe actually has 3 space and 1 time dimension.

When my teacher did exactly this on the blackboard it was almost a 
divine revelation for me. For days I was like 'wow' and Genesis 1:3 has 
never had the same feeling again. I know people use Maxwell's equations 
and add 'and there was light'; you can get t-shirts with that text. In 
reality it is even much deeper, you only need space and time. Genesis 
1:3 is a direct consequence of Genesis 1:1, it is totally superfluous.


Post a reply to this message

From: Paul Fuller
Subject: Re: Molecular biology
Date: 8 Jan 2011 20:25:17
Message: <4d290e7d@news.povray.org>
On 9/01/2011 3:19 AM, Warp wrote:
>
>    It's hard to imagine how life could form without water.
>

I'm familiar with the view that water is important and perhaps essential 
for life to develop and survive.  It may well be correct or at least the 
most likely environment for life by far.

But it is interesting to think about what truly different environments 
might mean to life.

Rather than define liquid water as the essential requirement for life, I 
think the criteria might be more like:

a) A medium that provides both persistence and variability with enough 
complexity to support non-trivial patterns of organisation
b) An energy gradient that is neither too small nor too great for 
whatever the medium is - at least in some local regime for some period 
of time
c) Time

Given those factors it is possible to imagine life in all sorts of 
situations where liquid water is not an important factor.

There isn't anything in the meta-mechanism of evolution that requires H2O.

Then there could be forms of life that started in a water rich 
environment but evolved beyond that requirement.


Post a reply to this message

From: Darren New
Subject: Re: Molecular biology
Date: 8 Jan 2011 21:37:39
Message: <4d291f73$1@news.povray.org>
andrel wrote:
> one time, with a distance between 2 points defined by x^2+Y^2+z^2-ct^2 

> OTOH if this is not observed in our universe, we either have more than 4 
> space/time dimensions or laws are not invariant, both do not seem 
> compatible with reality.

Except you just included "c" as a constant in that formula, which was the 
point.  If "c" varies depending on how fast you're going, that whole formula 
falls apart.

-- 
Darren New, San Diego CA, USA (PST)
   Serving Suggestion:
     "Don't serve this any more. It's awful."


Post a reply to this message

From: Darren New
Subject: Re: Molecular biology
Date: 8 Jan 2011 21:38:32
Message: <4d291fa8$1@news.povray.org>
Patrick Elliott wrote:
> The only problem with that is, it would have to only be non-logically 
> consistent on a very small scale, since, otherwise, there is no evidence 
> this would be the case. It also runs into the whole mess that *no* one, 
> neither scientists, nor the religious (who love this argument as an "in" 
> for their "faith"), would have any damn clue what is going on.

I'd love to address your points, if I could understand what you're saying.

-- 
Darren New, San Diego CA, USA (PST)
   Serving Suggestion:
     "Don't serve this any more. It's awful."


Post a reply to this message

From: Darren New
Subject: Re: Molecular biology
Date: 8 Jan 2011 21:44:23
Message: <4d292107$1@news.povray.org>
Patrick Elliott wrote:
> It was an "alternate" design to existing ones, 
> which would allow more speed, but at less cost.

Errr, no, not really. The thing about reversible computing is that it takes 
just as much energy to run in the forward direction if you want to progress 
at the same speed. If you get half way through a calculation and stop 
applying a power gradient, you're equally likely to go either direction. You 
can use arbitrarily little energy, but you'll go arbitrarily slowly forward.

> What, if anything, it 
> had to do with quantum computing, from that article, would be rather 
> unclear, since it quite literally never mentioned it at all.

Quantum computing is the only *actual* reversible machines out there, afaik. 
  (Well, reversible in the sense of actually saving power to do so.)

-- 
Darren New, San Diego CA, USA (PST)
   Serving Suggestion:
     "Don't serve this any more. It's awful."


Post a reply to this message

From: Darren New
Subject: Re: Molecular biology
Date: 8 Jan 2011 21:52:21
Message: <4d2922e5$1@news.povray.org>
Warp wrote:
>   You are making many category mistakes here. The most prominent one is
> "either the story of genesis is literal and God created the universe and
> the principles we must obey, or the story is only an allegory and God did
> not create the universe nor the principles we must obey". It think this
> is called a false dichotomy.

No. I'm asking if God didn't create the universe and humans personally, why 
humans would have any moral obligation to God.  Why is it the case that we 
*should* obey God, rather than just God imposing his will on us like the 
ruler of an invading army would?

>   Just because the story might be told with allegories doesn't necessarily
> mean that the gist of the story is not true. 

I'm asking what parts you think is the essential "gist" that would lead to a 
real actual Son Of God being sacrificed being necessary for the eternal 
salvation of your soul.

You can't just say "it's not true, but you should believe the results of it 
as if it was true." If it's an allegory for something that *actually* 
happened and indeed *is* actually happening, you ought to be able to say 
what it is that is *actually* happening that leads to the same conclusions 
as the allegory. You can't say "it's just a metaphor for something else that 
I can't describe, but you should come to the same conclusions anyway."

> Just because something is
> expressed as a metaphor doesn't make what the metaphor is referring to
> false.

I'm just asking what could possibly be the actuality that would lead to the 
same conclusions.

>   Another mistake you are doing is straw man argumentation: You are taking
> the (well, *a*) literal interpretation of the scripture and then mocking it,
> arguing that since it makes no sense, nothing of it can be true (not even
> the idea that is being expressed in allegorical form).

I'm not mocking anything. I'm sincerely asking for an interpretation of the 
scripture that's consistent with the Big Bang and evolution wherein the 
execution of a Jewish rabbi 2000 years ago has an effect on my eternal soul.

>   Note that I'm not saying anything about the story is true. I'm just
> saying that your argumentation is fallacious.

It's not an argument. It's a question. You say "it's really an allegory, 
it's not true, but the conclusions are the same."  I'm asking what the truth 
is that would lead to that allegory and the same conclusions.

I.e., you say "just because it's allegorical doesn't mean it isn't 
describing a real event."  Fine. What's the "real event" that Genesis is 
describing? Then, given that real event, where does Jesus dying for your 
sins come into it?  I'm happy to listen to your description with an open 
mind. But it's a cop-out for you to follow "it's just allegorical but 
describing a real event" with "and by the way, you have to invent a 
satisfactory real event for yourself."

-- 
Darren New, San Diego CA, USA (PST)
   Serving Suggestion:
     "Don't serve this any more. It's awful."


Post a reply to this message

From: andrel
Subject: Re: Molecular biology
Date: 9 Jan 2011 05:54:45
Message: <4D2993FC.5060701@gmail.com>
On 9-1-2011 3:37, Darren New wrote:
> andrel wrote:
>> one time, with a distance between 2 points defined by x^2+Y^2+z^2-ct^2
>
>> OTOH if this is not observed in our universe, we either have more than
>> 4 space/time dimensions or laws are not invariant, both do not seem
>> compatible with reality.
>
> Except you just included "c" as a constant in that formula, which was
> the point. If "c" varies depending on how fast you're going, that whole
> formula falls apart.

?? I defined a metric on my space, that is all. OK, I added a 'c' to 
keep consistent with ordinary people*. No self respecting theoretical 
physicist would do that. (But then they sometimes don't know what their 
formulas mean in real life as they lost track what the power of 'c' is 
in their formulas; 'c' is in their system a constant of 1). That the c 
turns out to have a meaning in real life is a surprise.
In fact it doesn't, remember we were just doing maths. All we know is 
that there are coupled vector and scalar fields, with solutions that 
propagate out with a speed 'c'. If we identify those with the E and B 
field what propagates out is light, but then we are in the physical world.

A more consistent implementation of your proposal would be to define a 
distance as (px)^2+(qy)^2+(rz)^2-(ct)^2 where p,q,r, and c depend on 
position in space and/or velocity (and/or on higher orders derivatives). 
I am sure there are some mathematicians studying those too. Perhaps some 
of those can even be forced to be Galileo or Lorentz invariant too.

*) Note that I forgot to square it, the dimensions don't add up. 
Probably my teacher first did it without this constant or with another 
constant to remind us later that it had a dimension of (m/s)^2


Post a reply to this message

From: Patrick Elliott
Subject: Re: Molecular biology
Date: 9 Jan 2011 14:13:06
Message: <4d2a08c2@news.povray.org>
On 1/8/2011 7:38 PM, Darren New wrote:
> Patrick Elliott wrote:
>> The only problem with that is, it would have to only be non-logically
>> consistent on a very small scale, since, otherwise, there is no
>> evidence this would be the case. It also runs into the whole mess that
>> *no* one, neither scientists, nor the religious (who love this
>> argument as an "in" for their "faith"), would have any damn clue what
>> is going on.
>
> I'd love to address your points, if I could understand what you're saying.
>
?? I am saying, if the universe isn't logically consistent than science 
would have to be wrong on a huge scale, but the morons that use that as 
an excuse to claim anything else is better wouldn't have a leg to stand 
on either. You would need to.. have an inconsistent universe, which 
never the less, managed to be consistent on the large scale only. Like.. 
statistically stable, but completely unstable on the basic level.

Mind, this wouldn't preclude it being consistent, it would only mean 
that events where not predictable on the smallest scale, but that the 
law of averages/big numbers both made it consistent once you had enough 
events to look at.

-- 
void main () {
   If Schrödingers_cat is alive or version > 98 {
     if version = "Vista" {
       call slow_by_half();
       call DRM_everything();
     }
     call functional_code();
   }
   else
     call crash_windows();
}

<A HREF='http://www.daz3d.com/index.php?refid=16130551'>Get 3D Models, 
3D Content, and 3D Software at DAZ3D!</A>


Post a reply to this message

From: Patrick Elliott
Subject: Re: Molecular biology
Date: 9 Jan 2011 14:21:34
Message: <4d2a0abe$1@news.povray.org>
On 1/8/2011 7:44 PM, Darren New wrote:
> Patrick Elliott wrote:
>> It was an "alternate" design to existing ones, which would allow more
>> speed, but at less cost.
>
> Errr, no, not really. The thing about reversible computing is that it
> takes just as much energy to run in the forward direction if you want to
> progress at the same speed. If you get half way through a calculation
> and stop applying a power gradient, you're equally likely to go either
> direction. You can use arbitrarily little energy, but you'll go
> arbitrarily slowly forward.
>
>> What, if anything, it had to do with quantum computing, from that
>> article, would be rather unclear, since it quite literally never
>> mentioned it at all.
>
> Quantum computing is the only *actual* reversible machines out there,
> afaik. (Well, reversible in the sense of actually saving power to do so.)
>
Think we may be talking about different things here... The idea I am 
talking about is that you programmaticaly do the equivalent of:

1 + 2 + 4 * 5 = result
roll back to 1 + 2
3 * 10 + 5 = result

The point of the idea being that if you do not have to "turn on" a 
switch, only shut some off, the cost is lower. The trick being how to 
know if the previous state *is* going to do that. Its an insanely mind 
boggling idea, but some limited experiments have been done with it, and 
it didn't require a quantum computer to do so.

http://en.wikipedia.org/wiki/Reversible_computing

-- 
void main () {
   If Schrödingers_cat is alive or version > 98 {
     if version = "Vista" {
       call slow_by_half();
       call DRM_everything();
     }
     call functional_code();
   }
   else
     call crash_windows();
}

<A HREF='http://www.daz3d.com/index.php?refid=16130551'>Get 3D Models, 
3D Content, and 3D Software at DAZ3D!</A>


Post a reply to this message

From: Patrick Elliott
Subject: Re: Molecular biology
Date: 9 Jan 2011 14:26:08
Message: <4d2a0bd0$1@news.povray.org>
On 1/8/2011 2:12 AM, Warp wrote:
> Patrick Elliott<sel### [at] npgcablecom>  wrote:
>> This isn't the real problem. The real problem is that those who support
>> it **do not want a result that contradicts the idea that the first part
>> of the Bible is literally true**. The Vatican recently mumbled something
>> about how they believe, "god created the big bang." The answer of one of
>> the *major* proponents of the, "youngish earth, AiG, ID is real", dear
>> old Ken Ham, had to this was, roughly, "If the big bang happened, then
>> genesis would need to be wrong, or allegory, but if it was wrong, then
>> the first 'marriage' would be false, sin wouldn't be real, etc., and it
>> would fundamentally destroy everything from Christianity itself, to the
>> sanctity of heterosexual marriage. Therefor, the Pope is wrong!"
>
>> Its the first case of actual logic I have seen from the man. Yes Ken, if
>> Genesis, which is the basis of virtually every bit of bullshit
>> moralizing, persecution, and evil your religion has, or continues, to
>> institute, was wrong, so would your entire religion. Congratulations on
>> proving you can follow logic, even if you completely fail at accepting
>> its conclusions. lol
>
>    I think your view is biased. I don't see how "the story of Genesis is
> only an allegory, it did not happen literally" would discredit the entirety
> of christianity. For example the "sanctity of marriage" (assuming there is
> such a thing) doesn't become any less so if the story of creation is
> allegorical.
>
It would discredit ***his***, and pretty much the view of all of the 
people like him, on the subject. In any case, they are the ones claiming 
that proving that there where not X number of imaginary "kinds" on a 
non-existent Ark, and all the other gibberish in there, would rob their 
pathetic little lives of all hope and purpose.

Kind of like to know though.. If, as he claims, the whole Adam and Eve 
thing was the first "marriage", by which all others are based, where did 
I miss the ceremony and exchange of vows in there, and what where they 
exactly? lol

-- 
void main () {
   If Schrödingers_cat is alive or version > 98 {
     if version = "Vista" {
       call slow_by_half();
       call DRM_everything();
     }
     call functional_code();
   }
   else
     call crash_windows();
}

<A HREF='http://www.daz3d.com/index.php?refid=16130551'>Get 3D Models, 
3D Content, and 3D Software at DAZ3D!</A>


Post a reply to this message

From: Patrick Elliott
Subject: Re: Molecular biology
Date: 9 Jan 2011 14:28:23
Message: <4d2a0c57$1@news.povray.org>
On 1/8/2011 12:25 PM, Warp wrote:
> Darren New<dne### [at] sanrrcom>  wrote:
>> Warp wrote:
>>>    I think your view is biased. I don't see how "the story of Genesis is
>>> only an allegory, it did not happen literally" would discredit the entirety
>>> of christianity.
>
>> What did Jesus die for, if there is no original sin? Indeed, why should
>> anyone worship YHVH if he *isn't* the creator?
>
>    The question is literal interpretation vs. allegorical interpretation.
> Just because something is written figuratively doesn't mean that it's not
> describing a real event. The details may be fictitious, but it may still
> be describing what happened.
>
Except, where the "event" is only described in one book of fiction, and 
no where else at all, and the only references to the event all seem to 
show up *after* it was written. You know, kind of like 100% of 
everything on the whole Jesus part of it...

-- 
void main () {
   If Schrödingers_cat is alive or version > 98 {
     if version = "Vista" {
       call slow_by_half();
       call DRM_everything();
     }
     call functional_code();
   }
   else
     call crash_windows();
}

<A HREF='http://www.daz3d.com/index.php?refid=16130551'>Get 3D Models, 
3D Content, and 3D Software at DAZ3D!</A>


Post a reply to this message

From: Patrick Elliott
Subject: Re: Molecular biology
Date: 9 Jan 2011 14:34:25
Message: <4d2a0dc1$1@news.povray.org>
On 1/8/2011 1:53 PM, Warp wrote:
> Darren New<dne### [at] sanrrcom>  wrote:
>> Warp wrote:
>>> Darren New<dne### [at] sanrrcom>  wrote:
>>>> Warp wrote:
>>>>>    I think your view is biased. I don't see how "the story of Genesis is
>>>>> only an allegory, it did not happen literally" would discredit the entirety
>>>>> of christianity.
>>>
>>>> What did Jesus die for, if there is no original sin? Indeed, why should
>>>> anyone worship YHVH if he *isn't* the creator?
>>>
>>>    The question is literal interpretation vs. allegorical interpretation.
>
>> But we're not talking about the allegorical "sun rising" kind of thing (vs
>> Earth orbiting the Sun). We're talking about whether some supernatural being
>> intentionally created humans as they are, told them lies, then punished them
>> and all their descendants for believing some other third party that pointed
>> out the lies were lies. Then killed all but a handful because they disobeyed
>> him some more.
>
>> I don't see how you can turn that into an allegory that makes "sin" still be
>> a reasonable concept. What might have *really* happened that would make it
>> possible for the death of a rabbi a couple thousand years ago capable of
>> affecting what happens to you after you're dead? I just can't imagine what
>> would give YHVH any moral authority to dictate what humans do and to punish
>> them for failing to do so, if YHVH didn't actually create humans.
>
>    You are making many category mistakes here. The most prominent one is
> "either the story of genesis is literal and God created the universe and
> the principles we must obey, or the story is only an allegory and God did
> not create the universe nor the principles we must obey". It think this
> is called a false dichotomy.
>
It should be noted that if this *is* a false dichotomy, it is precisely 
the one that people like Ken Ham are scared to death of. They literally 
say that *everyone* has to be true, except if they so otherwise, or its 
all a lie. Examined purely from that stance, they are 100% correct. The 
problem, of course, is that, instead of reexamining their initial 
premise, they circle the wagons, and insist its all true anyway, and 
everyone else is wrong for pointing out to them that it can't be, or 
worse, that its not *necessary* for them to accept parts of it.

>    Just because the story might be told with allegories doesn't necessarily
> mean that the gist of the story is not true. Just because something is
> expressed as a metaphor doesn't make what the metaphor is referring to
> false.
>
We are not the ones making that argument. They are. So, by their 
standards, it can't be true *at all*, if the core part of it is 
allegory. I won't even bother with how many things are just plain stupid 
about it, or contradictory to physics, geology, biology, and human 
psychology, even if it is accepted as allegory.

-- 
void main () {
   If Schrödingers_cat is alive or version > 98 {
     if version = "Vista" {
       call slow_by_half();
       call DRM_everything();
     }
     call functional_code();
   }
   else
     call crash_windows();
}

<A HREF='http://www.daz3d.com/index.php?refid=16130551'>Get 3D Models, 
3D Content, and 3D Software at DAZ3D!</A>


Post a reply to this message

From: andrel
Subject: Re: Molecular biology
Date: 9 Jan 2011 15:40:59
Message: <4D2A1D5F.3050503@gmail.com>
On 9-1-2011 20:26, Patrick Elliott wrote:
> On 1/8/2011 2:12 AM, Warp wrote:
>> Patrick Elliott<sel### [at] npgcablecom> wrote:
>>> This isn't the real problem. The real problem is that those who support
>>> it **do not want a result that contradicts the idea that the first part
>>> of the Bible is literally true**. The Vatican recently mumbled something
>>> about how they believe, "god created the big bang." The answer of one of
>>> the *major* proponents of the, "youngish earth, AiG, ID is real", dear
>>> old Ken Ham, had to this was, roughly, "If the big bang happened, then
>>> genesis would need to be wrong, or allegory, but if it was wrong, then
>>> the first 'marriage' would be false, sin wouldn't be real, etc., and it
>>> would fundamentally destroy everything from Christianity itself, to the
>>> sanctity of heterosexual marriage. Therefor, the Pope is wrong!"
>>
>>> Its the first case of actual logic I have seen from the man. Yes Ken, if
>>> Genesis, which is the basis of virtually every bit of bullshit
>>> moralizing, persecution, and evil your religion has, or continues, to
>>> institute, was wrong, so would your entire religion. Congratulations on
>>> proving you can follow logic, even if you completely fail at accepting
>>> its conclusions. lol
>>
>> I think your view is biased. I don't see how "the story of Genesis is
>> only an allegory, it did not happen literally" would discredit the
>> entirety
>> of christianity. For example the "sanctity of marriage" (assuming
>> there is
>> such a thing) doesn't become any less so if the story of creation is
>> allegorical.
>>
> It would discredit ***his***, and pretty much the view of all of the
> people like him, on the subject. In any case, they are the ones claiming
> that proving that there where not X number of imaginary "kinds" on a
> non-existent Ark, and all the other gibberish in there, would rob their
> pathetic little lives of all hope and purpose.
>
> Kind of like to know though.. If, as he claims, the whole Adam and Eve
> thing was the first "marriage", by which all others are based, where did
> I miss the ceremony and exchange of vows in there, and what where they
> exactly? lol

You forget to mention that he first had to divorce from the unnamed 
woman in gen 1:27
But let's get back to molecular biology, much more interesting than a 
repeat of the bible discussions.


Post a reply to this message

From: Darren New
Subject: Re: Molecular biology
Date: 9 Jan 2011 22:44:17
Message: <4d2a8091$1@news.povray.org>
Patrick Elliott wrote:
> if the universe isn't logically consistent than science 
> would have to be wrong on a huge scale,

I don't think so.

> You would need to.. have an inconsistent universe, which 
> never the less, managed to be consistent on the large scale only. Like.. 
> statistically stable, but completely unstable on the basic level.

We have that already. It's called quantum mechanics. :-)

> Mind, this wouldn't preclude it being consistent, it would only mean 
> that events where not predictable on the smallest scale, but that the 
> law of averages/big numbers both made it consistent once you had enough 
> events to look at.

Again. :-)

-- 
Darren New, San Diego CA, USA (PST)
   Serving Suggestion:
     "Don't serve this any more. It's awful."


Post a reply to this message

From: Darren New
Subject: Re: Molecular biology
Date: 9 Jan 2011 22:57:29
Message: <4d2a83a9$1@news.povray.org>
Patrick Elliott wrote:
> Think we may be talking about different things here... The idea I am 
> talking about is that you programmaticaly do the equivalent of:

Well, if you're talking about logical reversability, sure. But that's not 
all that much more interesting than memoization.

> 1 + 2 + 4 * 5 = result
> roll back to 1 + 2
> 3 * 10 + 5 = result

Pulling out the result is irreversible.

> The point of the idea being that if you do not have to "turn on" a 
> switch, only shut some off, the cost is lower. 

That's not how it works. You have to drive the circuit backwards. You don't 
just turn off parts of it, as that's irreversible too. Unless you're talking 
about "logical reversibility", which isn't what I'm talking about.

> it didn't require a quantum computer to do so.

It doesn't necessarily need to be quantum entanglement. But the only 
mechanism people have used (at least that I've heard about) that worked is 
to do the computing with a chain of atoms that calculate what you're trying 
to calculate, with the calculation being driven along by a voltage gradient.

-- 
Darren New, San Diego CA, USA (PST)
   Serving Suggestion:
     "Don't serve this any more. It's awful."


Post a reply to this message

From: Invisible
Subject: Re: Molecular biology
Date: 10 Jan 2011 04:08:30
Message: <4d2acc8e$1@news.povray.org>
>>> And yet, the uninformed masses have no problem saying that "it is
>>> obviously too complex to come about by chance and therefore must have
>>> been created".
>>
>> It is clearly too complicated to have been created.
>
> That is an insight that makes sense to us.
>
> Unfortunately once you believe in an omnipresent, all knowing, all
> powerful, arbitrary and apparently uncaring but malicious deity then
> anything is possible.

Let us not forget, Intelligent Design isn't about proving a novel 
scientific theory; it's about pretending that Genesis is science. The 
so-called scientific evidence and logical arguments are just window 
dressing.


Post a reply to this message

From: Invisible
Subject: Re: Molecular biology
Date: 10 Jan 2011 04:15:53
Message: <4d2ace49@news.povray.org>
On 07/01/2011 08:59 PM, Darren New wrote:

> Googling "string theory test" brings up a bunch, but I haven't looked at
> many of them. Indeed, I myself thought it was a fundamental attribute of
> string theory that it could describe every possible set of physical
> laws, or some such.

String theory is one possible candidate for the Theory of Everything 
(ToE). Currently we have a theory of big things (general relativity) and 
a separate, incompatible theory of small things (QED). A ToE is not 
*literally* a theory that explains "everything", it just means a single, 
consistent theory that works over all scales.

So yes, the /idea/ is that eventually string theory should be able to 
explain and make predictions about the real world. And the day that 
happens, it will be science. But until that day, it is only 
proto-science, no matter how sciencey it looks.

The fundamental difference between ST and ID, of course, is that ST has 
a realistic possibility of becoming testable some day soon. ID does not.


Post a reply to this message

From: Invisible
Subject: Re: Molecular biology
Date: 10 Jan 2011 04:30:17
Message: <4d2ad1a9$1@news.povray.org>
On 07/01/2011 10:00 PM, Warp wrote:

>    While I know virtually nothing about string theory (well, string theories,
> as there are many; the unified theory would be the so-called M-theory),
> I find it a bit "unlikeable" for one reason.

>    However, which observation or measurement is string theory based on?
> As I said, I know next to nothing about it, but it just sounds to me
> like string theory is based on *nothing* at all. It just throws a big
> bunch of extra dimensions from nowhere, based on no measurement,
> observation or other rational justification, and builds up a huge
> bunch of random hypotheses based on these unfounded assumptions.

It's in idea, a theory, and they're trying to see whether it plays out 
or not. Currently the math doesn't even work properly, but there's quite 
a lot of people working on fixing that. There have been plenty of 
scientific ideas in the past that people have come up with on a whim 
which turned out to be correct, or almost correct. And besides, I rather 
suspect that the basic assumptions of string theory aren't as arbitrary 
as they seem, it's just that string theory is so highly abstracted from 
the everyday world that most presentations of it for the general 
population get watered down to the point where it /seems/ arbitrary.

Then again, I know little about string theory (or should that be 
"theories"?) I'm content to just sit and wait to see if they eventually 
sort it out or not.

The fundamental idea of string theory is that each subatomic particle is 
actually a vibrating string (or possibly sheet), and each type of 
vibration corresponds to a different particle. Note that this is not the 
first time such an idea has been voiced; way back when the periodic 
table was discovered, Lord Kelvin suggested that perhaps each elemental 
atom was a different type of knot tied in the ether. The study of knot 
theory began because people thought that be enumerating all possible 
knots, they would discover the structure of the chemical elements. (But, 
apparently, it turns out atoms are different due to the combinations of 
subatomic particles they contain...)

And then, of course, there's Stephen Wolfram, who suggests that not just 
matter but time itself is quantum, and that the universe is actually a 
giant cellular automaton, and that the observed quanta are actually the 
cells of the cellular grid. (They guy probably needs to put down the CA 
simulator and go outside for a little while.)


Post a reply to this message

From: Invisible
Subject: Re: Molecular biology
Date: 10 Jan 2011 04:38:25
Message: <4d2ad391$1@news.povray.org>
On 07/01/2011 10:25 PM, Warp wrote:

>    I think you are confused. The modern banana (that yellow one) is
> only something like 200 years old. It's the product of a mutation of
> a single wild banana plant which suddenly started growing that yellow
> sweet version. The wild banana is much smaller, green, full of seeds
> and almost inedible in raw form.
>
>    The mutation in question is actually so severe that the modern banana
> plant is sterile: It cannot reproduce by itself, requiring human
> intervention for cultivation (this happens mainly by transplanting
> underground stems or tissue cultures).
>
>    (Ironically, the modern banana is so mutated that it can be considered
> by all practical means "unnatural", as without human intervention it would
> have died right from that very first mutated plant 200 years ago, which
> makes it a perfect example of gene manipulation by humans, yet people who
> strongly oppose gene manipulation have usually no problems in eating
> bananas.)

Well, there are plenty of other plants that are so mutated that they are 
now incapable of reproducing for themselves but for some special animal 
that farms them. (I might mention, for example, the fungi that 
leafcutter ants culture, for example.) The natural world is full of 
complex partnerships such as this. I don't think you could call the 
banana "unatural".

As for people who oppose genetic engineering, they will argue that 
bananas are OK, because the gene alteration happened "naturally". If the 
gene alteration had happened because of a man in a white coat, that 
would obviously be "unatural", which is bad. Obviously.


Post a reply to this message

From: Invisible
Subject: Re: Molecular biology
Date: 10 Jan 2011 04:42:40
Message: <4d2ad490@news.povray.org>
>> So mathematics is not science?
>
> No, math is not science.

I concur with Darren.

Science is the systematic investigation of the real world. Math is the 
systematic investigation of abstract systems of axioms of an arbitrary 
nature. Some of these systems may or may not be related to something 
that happens in the real world, and as such may be "useful". But there 
is no requirement for that in pure math. (Applied math is another 
matter, of course...)

Some have asserted that "mathematics is the language of science" (which 
is not the same as "mathematics *is* science").

On the other hand, more recently some have suggested mathematics 
becoming an experimental discipline. (After, e.g., the fiasco with the 
4-colour map conjecture and its proof.)


Post a reply to this message

From: Invisible
Subject: Re: Molecular biology
Date: 10 Jan 2011 04:56:06
Message: <4d2ad7b6@news.povray.org>
On 07/01/2011 04:51 PM, scott wrote:
> For someone with no chemistry or biology education past basic
> school-level, that was really interesting, thanks. It answered some of
> the questions I had, and made me hungry to find out more...

The mark of a well-written piece. ;-)

Yes, I too have little chemistry knowledge, beyond what I could get from 
The Osborne Introduction to Chemistry. In particular, the idea of 
catalysis seems bizarre and inexplicable.

If you read a typical encyclopaedia entry, at best you'll discover that 
DNA makes proteins, and proteins do chemical reactions, and that's how 
cells work. It might even mention that there's an RNA step in between, 
tell you which organelles do all this work, and perhaps even show you 
the table of amino acids and which codons code for them.

The reality of the situation, as I wrote, is far, far more complex (and 
interesting).

If a human being had designed the cellular machinery, they would 
redoubtably have designed it as a set of independent little compartments 
that all do their own thing in an orthogonal way, signalling to each 
other as appropriate. But when you read about how /actual/ living cells 
work, you find a tangled mess of haphazard interactions and fortuitous 
reuses of molecules and structures for multiple simultaneous purposes - 
/exactly/ as evolution would predict. It's really a very striking 
demonstration, to me.

If you read a brick-thick tome like The Molecular Biology of the Gene, 
it talks about Daltons and thermodynamic equilibria and van der Waals 
forces and so forth as if you have any idea what the hell it's talking 
about. Only Behe describes proteins as "the motors, gears, pulleys and 
scaffolding of the cell". This explains what it's all about far more 
vividly than any discussion of activation energy levels.

Still, not being an expert chemist, I find myself lacking an intuition 
for how individual molecules of a substance behave. You can sort of 
imagine an amino acid chains as being like a string of beads on a 
necklace. The books tell us that some of these beads are watery, some 
are oily, some electrically changed negative or positive, some are 
acidic or basic, the beads are all different sizes... but it's difficult 
to really visualise exactly how that makes them move. Or, for that 
matter, how some RNA molecules can fold up and edit themselves, chopping 
out introns automatically.

Basically, I lack an intuition for how these molecules float around in 
their environment.

Then again, protein folding is one of the great problems of this decade. 
(Remember folding@home, anyone?) So maybe the chemists don't yet 
understand it either...


Post a reply to this message

From: Invisible
Subject: Re: Molecular biology
Date: 10 Jan 2011 04:59:57
Message: <4d2ad89d$1@news.povray.org>
> Amazing to see how molecular biology uncovers how the operating
> mechanisms of living cells are not so much chemical as they are
> nano-mechanical.
>
> The "nanobots" are out there already.

The wheel? Nature did it first.
Explosives? Nature did it first.
Powered flight? Nature did it first.
Sonar? Nature did it first.
Electricity? Nature did it first.
Turing-complete computers? Nature did it first.

...and you're surprised that nature has already done nanobots? ;-)


Post a reply to this message

From: Invisible
Subject: Re: Molecular biology
Date: 10 Jan 2011 05:33:10
Message: <4d2ae066@news.povray.org>
>> The more I read about molecular biology, the more interesting it becomes.
>
> Really incredible stuff goes on. I'm never sure whether I'm more amazed
> that it works like this, or that we can figure out that it works like this.

Indeed. It's not surprising that people win Nobel prises for this kind 
of work.

Take a look at the paper I linked to. Just look at how much statistics 
went into merely checking whether human opioid receptors have changed at 
all, and if so whether it's by chance or due to selection pressure.

(The idea of the human brain containing receptors for opium has always 
bothered me. Opium is a foreign substance that doesn't belong there; why 
the hell would every single walking human have receptors for responding 
to it? The answer, of course, is that they aren't *opium* receptors at 
all! They're endorphin receptors. They respond to the endorphins that 
the human brain itself naturally produces. And yet, even the word 
"endorphin" means "endogenous morphine". How backwards can you get?)

>> Mutations that are fatal are vigorously eliminated by natural
>> selection. And indeed, you can find genes that have barely changed for
>> billions of years. These are the so-called "highly conserved sequences".
>
> I remember reading somewhere that there's a gene that controls how many
> fingers you have *and* something about the reproductive system, so any
> mutation in that gene tends to keep you from reproducing for entirely
> unrelated reasons. Hence the reason why everything from fish to bats to
> birds to people have five finger bones.

Actually I think you'll find it's that all tetrapods are descendants of 
a single fish ancestor, which just happened to have 5 digits. By now it 
would be far too difficult to change it.

Incidentally, you may have heard about the theory that embryos retrace 
their ancestry as they develop. For example, a human embryo initially 
looks not unlike some kind of bizarre fish. Similarly, baleen whales 
initially grow teeth before later reabsorbing them (since their 
ancestors had teeth, but they do not).

Actually this theory is wrong. Embryos do not /literally/ retrace their 
evolutionary history. What /is/ true is that alterations to the early 
parts of embryology tend to bugger up more things than do alterations to 
the later parts of embryology. Not as an absolute rule, just a general 
tendency. The net result is that typically animals change their final 
body plan by changing the later stages of their embryology rather than 
the early ones.

In short, I suspect that tetrapods all have 5 digits because there are 
now highly complex, well-developed and extensively inter-dependent 
systems of gene regulation for building 5 digits. You'd have to change a 
hell of a lot of stuff to make it, say, 6. If you just changed one 
chemical gradient, for example, you'd break so much stuff... it just 
wouldn't work.

If you look at things that aren't tetrapods, you find that 5 isn't so 
special.

>> Speaking of which, here's a thing: Every single living cell in the
>> human body (with a few exceptions) has the exact same genome.
>
> Every single *human* cell. About half (or more) of the cells in your
> body aren't human, tho.

Humans are eukaryotes. Eukaryote cells are apparently *way* bigger than 
bacterial cells. So it's not difficult for bacterial cells to outnumber 
human cells; they're smaller. And while we're on the subject, everybody 
thinks of bacteria as "those things that make you ill". But the vast 
majority of bacterial species have no effect on human health at all. And 
a large number of them are /beneficial/.

(For example, E. coli is well-known for making people ill. But it's a 
normal resident of the human body, and it even "communicates" with the 
human digestive system, telling it for example how much nutrients it 
needs. The human digestive system then absorbs all but that amount, 
leaving enough behind for E. coli (and friends) to stay fed. They are 
symbionts.)

Then of course, there's the theory (presented by Richard Dawkins as if 
it's an accepted scientific /fact/) that most of the organelles of the 
eukaryote cell are actually symbiotic bacteria which have become reduced 
almost to nothing, retaining only their key chemical processes that 
benefit the cell. If it were true, it would mean that basically the 
entire chemistry of visible life is possible due to bacteria.

> I'm not sure why you have a job in IT instead of a job in teaching.

I'm not sure why I have an honours degree in computer science, and yet 
my sister actually gets paid to write computer programs. o_O

Then again, she works in London, so...


Post a reply to this message

From: Warp
Subject: Re: Molecular biology
Date: 10 Jan 2011 07:16:01
Message: <4d2af881@news.povray.org>
Invisible <voi### [at] devnull> wrote:
> Well, there are plenty of other plants that are so mutated that they are 
> now incapable of reproducing for themselves but for some special animal 
> that farms them. (I might mention, for example, the fungi that 
> leafcutter ants culture, for example.) The natural world is full of 
> complex partnerships such as this. I don't think you could call the 
> banana "unatural".

  Well, many people seem to think that anything that is man-made (or only
possible because of human intervetion) is by definition artificial and
unnatural (and hence obviously harmful).

  There seems to be this notion that "mother nature" protects people from
harm as long as humans don't tamper with her ways. In other words, as
long as something is deemed as "natural" (the product of natural processes
without human intervention) it's good and harmless, while anything that is
deemed as "artficial" is harmful (to both people and nature).

-- 
                                                          - Warp


Post a reply to this message

From: Warp
Subject: Re: Molecular biology
Date: 10 Jan 2011 07:18:32
Message: <4d2af918@news.povray.org>
Invisible <voi### [at] devnull> wrote:
> >> So mathematics is not science?
> >
> > No, math is not science.

> I concur with Darren.

> Science is the systematic investigation of the real world. Math is the 
> systematic investigation of abstract systems of axioms of an arbitrary 
> nature.

  Aren't you confusing "science" with "natural sciences"? Natural sciences
study the natural world, but "science" in general can encompass more than
that.

  As for math, would you say that, for example, the branch of mathematics
called geometry studies how the real world works or not?

-- 
                                                          - Warp


Post a reply to this message

From: Invisible
Subject: Re: Molecular biology
Date: 10 Jan 2011 07:40:31
Message: <4d2afe3f$1@news.povray.org>
On 10/01/2011 12:16 PM, Warp wrote:

>    There seems to be this notion that "mother nature" protects people from
> harm as long as humans don't tamper with her ways. In other words, as
> long as something is deemed as "natural" (the product of natural processes
> without human intervention) it's good and harmless, while anything that is
> deemed as "artificial" is harmful (to both people and nature).

But of course. It's not as if millions of lives around the world have 
been saved by the synthetic compound Tamiflu, not that every year people 
are killed by toxic mushrooms, spiders, snakes and jellyfish.

In fact, you know what? Mankind has spent decades trying to perfect more 
and more powerful nerve toxins. And after years of creating such 
deliberately poisonous artificial chemicals, the most toxic nerve poison 
known to man is /still/ 100% natural. It's called botox. It isn't even 
hard to find.


Post a reply to this message

From: Invisible
Subject: Re: Molecular biology
Date: 10 Jan 2011 07:45:07
Message: <4d2aff53$1@news.povray.org>
>> I concur with Darren.
>
>> Science is the systematic investigation of the real world. Math is the
>> systematic investigation of abstract systems of axioms of an arbitrary
>> nature.
>
>    Aren't you confusing "science" with "natural sciences"? Natural sciences
> study the natural world, but "science" in general can encompass more than
> that.

Well, I suppose if you wanted to be really pedantic about it, science is 
the study of that which can be experimentally verified (or falsified). 
Mathematics is /usually/ about what can be logically proven, which isn't 
exactly the same, but... there's perhaps some overlap there.

>    As for math, would you say that, for example, the branch of mathematics
> called geometry studies how the real world works or not?

Which geometry? Euclidean geometry? Elliptic geometry? Hyperbolic 
geometry? Some sort of non-homogeneous geometry?

Pure mathematics studies these geometries purely for their own sake. One 
or other of them /may/ correspond to the real world.

(For example, Euclid presumably proposed Euclidean geometry because he 
thought it corresponded to real figures drawn on real flat surfaces. But 
of course today we know that the universe actually has negative 
curvature, so hyperbolic geometry is probably a better match.)


Post a reply to this message

From: Warp
Subject: Re: Molecular biology
Date: 10 Jan 2011 10:13:24
Message: <4d2b2214@news.povray.org>
Invisible <voi### [at] devnull> wrote:
> >    As for math, would you say that, for example, the branch of mathematics
> > called geometry studies how the real world works or not?

> Which geometry? Euclidean geometry? Elliptic geometry? Hyperbolic 
> geometry? Some sort of non-homogeneous geometry?

> Pure mathematics studies these geometries purely for their own sake. One 
> or other of them /may/ correspond to the real world.

  The very word "geometry" means "measuring land" (from ancient greek
geo = earth/land, metri = measurement). Geometry is one of the oldest
branches of mathematics (probably only preceded by elementary arithmetic)
and was, indeed, motivated by real-world applications (such as measuring
the area of a piece of land and dividing land into equal parts by area).

  If that's not science, I don't know what is.

-- 
                                                          - Warp


Post a reply to this message

From: Invisible
Subject: Re: Molecular biology
Date: 10 Jan 2011 10:22:24
Message: <4d2b2430$1@news.povray.org>
>>>     As for math, would you say that, for example, the branch of mathematics
>>> called geometry studies how the real world works or not?
>
>> Which geometry? Euclidean geometry? Elliptic geometry? Hyperbolic
>> geometry? Some sort of non-homogeneous geometry?
>
>> Pure mathematics studies these geometries purely for their own sake. One
>> or other of them /may/ correspond to the real world.
>
>    The very word "geometry" means "measuring land" (from ancient greek
> geo = earth/land, metri = measurement).

And the very word "atom" means "cannot be cut". Not without a particle 
accelerator, anyway...

(For that matter, "electron" means "amber". Science and technology is 
littered with terms made up of Greek or Latin words, the literal meaning 
of which are utterly inappropriate considering what the term means today.)

> Geometry is one of the oldest
> branches of mathematics (probably only preceded by elementary arithmetic)
> and was, indeed, motivated by real-world applications (such as measuring
> the area of a piece of land and dividing land into equal parts by area).
>
>    If that's not science, I don't know what is.

Personally, I would make the separation that "Euclidean geometry" is a 
mathematical theory, while "the real world conforms to Euclidean 
geometry" is a scientific theory.

(And, for that matter, a scientific theory which has been falsified as 
thoroughly as Newton's laws of of motion have been falsified. In other 
words, it's incorrect, but it's close enough to being correct as to be a 
useful simplification, most of the time...)

Mathematical theories exist independent of the physical world. For 
example, the Manhattan geometry surely doesn't describe any real-world 
situation (except something really abstract like network topology). 
Certainly it doesn't describe the physical shapes we see with our eyes. 
And yet, it is a perfectly valid and self-consistent mathematical theory.


Post a reply to this message

From: John VanSickle
Subject: Re: Molecular biology
Date: 10 Jan 2011 10:27:42
Message: <4d2b256e$1@news.povray.org>
On 1/7/2011 9:28 AM, Invisible wrote:

> No sane Designer would have designed it this way.

Other than your belief that you would have done things differently, what 
is the basis for this claim?

Regards,
John


Post a reply to this message

From: John VanSickle
Subject: Re: Molecular biology
Date: 10 Jan 2011 10:29:49
Message: <4d2b25ed$1@news.povray.org>
On 1/7/2011 11:02 AM, Paul Fuller wrote:

> And yet, the uninformed masses have no problem saying that "it is
> obviously too complex to come about by chance and therefore must have
> been created".

This claim does not come strictly from uninformed masses.  It is also 
made by people more knowledgeable than you and I put together.

Regards,
John


Post a reply to this message

From: John VanSickle
Subject: Re: Molecular biology
Date: 10 Jan 2011 10:43:32
Message: <4d2b2924$1@news.povray.org>
On 1/7/2011 11:51 AM, Invisible wrote:

> I've seen a lot of arguments for and against whether ID should be taught
> in schools alongside evolution. For me, these all miss the main point:
> ID is not a scientific theory. It may or may not be correct, but it's
> not testable. Because it doesn't /predict/ anything.

Actually, it does.  It predicts, among other things, that the genetic 
code for organisms may have features of no present use, but which may be 
of use by descendant creatures.  An intelligent designer, especially one 
of the intellect required to design a eukaryotic cell, would have some 
capacity for anticipating future changes to the environment and can 
front-load the genetic code in preparation for this.

Be that as it may, I am against the teaching of life's origins on the 
public dime, because it is a matter of public debate, and is therefore 
incompatible with the principles that underlie a free society.  What 
invariably happens, when the government is allowed this power, is that 
the people who are in the wrong will go running to the government to 
have their view imposed by fiat, and all conflicting views suppressed to 
one degree or another.  At the present moment a person who is skeptical 
that natural selection is sufficient to explain the entirety of 
observable living systems is subject to exclusion from participating in 
scientific and educational endeavors, even when the topic has no bearing 
on the origin of life.  But in times past it was the other way around. 
"But we're not ignorant like they were then."  Actually, it's because of 
a shift in political connections.

As a practical matter, I of course oppose the teaching of views I 
disagree with, but I also oppose the forced teaching of views that I 
agree with, because that breeds resentment--especially if someone gets 
drunk with power and exceeds his authority--and I don't want my views 
getting blamed for some idiot's power trip.

Regards,
John


Post a reply to this message

From: Invisible
Subject: Re: Molecular biology
Date: 10 Jan 2011 10:45:49
Message: <4d2b29ad$1@news.povray.org>
>> No sane Designer would have designed it this way.
>
> Other than your belief that you would have done things differently, what
> is the basis for this claim?

OK, well sanity is something that medical professionals cannot strictly 
define, even for human subjects. So let's leave that out.

What I can say is this: If we had some idea *why* the designer designed 
life, we might be in a position to debate whether the way life works 
matches this goal or not.

ID helpfully omits to specify what the motivation was. With no design 
goal, we can't say a lot. Similarly, ID helpfully omits to specify 
anything about the designer (or designers) at all, so we have nothing to 
go on.

What we /can/ say is that no /human/ designer would have designed life 
this way. But that's probably obvious from the fact that humans have 
never designed anything even approaching the complexity of life. But, 
more particularly, artefacts designed by humans exhibit certain specific 
qualities.

Most obviously, man-made devices are highly discrete in their design. 
The task to be performed is split up into separate subtasks, which are 
performed by lots of little independent, orthogonal units, even if 
that's a less efficient way of doing things.

Compare the computer and the human brain. (No, the don't do the same 
thing. The resemblance is vague at best. But, very loosely, you could 
claim that both are giant signal processors, essentially.)

A computer has a CPU, connected by a narrow bridge to a completely 
separate RAM. It has several I/O devices, sometimes with their own CPUs 
and RAMs, needlessly duplicating functionality already present. In 
short, it is a collection of complex systems connected by simple 
interfaces. (Here "complex" and "simple" are obviously relative terms.)

Now consider the human brain. Rather than having one lump of tissue that 
receives sensory inputs, and a separate lump that stores memories, and a 
separate bit that compares one to the other, and another bit that 
generates motor outputs, what you /actually/ find is that all these 
circuits are all tangled up together. There are no "memory neurons" and 
"comparison neurons". Rather, the brain's ability to compare things or 
to remember things is an emergent property of a large network of more or 
less identical neural components, wired up in different combinations.

A human designer would have built a brain with lots of separate 
compartments. Evolution has built one with lots of related and some 
unrelated functions all tangled up together.

So, we can conclusively say that a human wouldn't have designed this 
organ this way. If we actually knew something about the hypothetical 
designer of ID, we might be able to test that claim as well. (But, 
helpfully, we cannot.)


Post a reply to this message

From: John VanSickle
Subject: Re: Molecular biology
Date: 10 Jan 2011 10:51:57
Message: <4d2b2b1d$1@news.povray.org>
On 1/7/2011 1:05 PM, Darren New wrote:
> I'm not sure why you have a job in IT instead of a job in teaching.

I taught computer literacy to fifteen-year-olds.

Teaching requires, in addition to subject matter competency, skill in 
classroom management and lesson planning and presentation.  I was hired 
having a CIS degree, but with no training in the other areas.  If you 
don't know what to watch for, the kids will go crazy.  Toss in the kids 
who weren't raised right (for whatever reason), and the situation 
becomes unmanageable.

Additionally, a typical school teacher takes an enormous amount of work 
home.  That takes its toll as well.

I quit after seven months.  My replacement worked for less than two 
years before moving on as well.

Regards,
John


Post a reply to this message

From: Invisible
Subject: Re: Molecular biology
Date: 10 Jan 2011 10:56:30
Message: <4d2b2c2e$1@news.povray.org>
On 10/01/2011 04:01 PM, John VanSickle wrote:

> Teaching requires, in addition to subject matter competency, skill in
> classroom management and lesson planning and presentation. I was hired
> having a CIS degree, but with no training in the other areas. If you
> don't know what to watch for, the kids will go crazy. Toss in the kids
> who weren't raised right (for whatever reason), and the situation
> becomes unmanageable.

I would have thought the biggest problem is that kids don't want to 
learn anything, don't give a damn what you're talking about, and will 
basically go to any lengths to avoid being taught.

_That_ is why I'm not a teacher.


Post a reply to this message

From: scott
Subject: Re: Molecular biology
Date: 10 Jan 2011 10:59:53
Message: <4d2b2cf9$1@news.povray.org>
> Mathematical theories exist independent of the physical world. For
> example, the Manhattan geometry surely doesn't describe any real-world
> situation (except something really abstract like network topology).

Err, you do realise why it's called Manhattan geometry?


Post a reply to this message

From: Invisible
Subject: Re: Molecular biology
Date: 10 Jan 2011 11:09:43
Message: <4d2b2f47@news.povray.org>
>> I've seen a lot of arguments for and against whether ID should be taught
>> in schools alongside evolution. For me, these all miss the main point:
>> ID is not a scientific theory. It may or may not be correct, but it's
>> not testable. Because it doesn't /predict/ anything.
>
> Actually, it does. It predicts, among other things, that the genetic
> code for organisms may have features of no present use, but which may be
> of use by descendant creatures. An intelligent designer, especially one
> of the intellect required to design a eukaryotic cell, would have some
> capacity for anticipating future changes to the environment and can
> front-load the genetic code in preparation for this.

ID asserts that "life was designed by an intelligent, concious entity". 
That's all it says.

Now, if you mean "life was designed by an intelligent, concious entity 
AT THE START OF EARTH'S HISTORY", then you start to be able to make some 
predictions.

The first prediction is that the genome of every creature that has ever 
existed and will ever exist must have been somehow encoded into the very 
first lifeform(s) that the designer seeded the planet with.

By a trivial pigeon-hole argument this is laughably impossible.

It also pre-supposes that the designer knew exactly what habitats would 
exist in 4 billion years' time, which is also absurdly impossible.

(The best human scientists, equipped with mountains of measurement data, 
cannot even predict what the weather will do in 5 days' time, never mind 
what it will do over geological time. And you're suggesting that the 
designer /could/ predict all of this with /no measurement data at all/? 
I think not.)

To see how severe the problem is, consider the video I watched the other 
day. D. Attenborough visited an ancient lava flow in New Zealand. In one 
place, it had cut off an area of forest about 300 yards across. And in 
this one tiny island of green surrounded by barren rock, there lives an 
entire ecosystem of plants and animals. There are species of fruit flies 
there that live in this 300 square yard patch of ground, and live 
nowhere else on the face of the Earth.

You seriously expect me to believe that some designer 4 billion years 
ago could have predicted that the lava flow would move in this exact 
direction to leave this specific patch of green free for colonisation? 
Pull the other one, it's got bells on.

> Be that as it may, I am against the teaching of life's origins on the
> public dime, because it is a matter of public debate, and is therefore
> incompatible with the principles that underlie a free society.

Well, that's a nice idea, but do we not teach children about World War 
II, because some lunatic claims that it didn't happen? Do we not tell 
them that the world is round, because a few lone idiots claim that it's 
flat?

Isn't part of the job of education to get the facts straight, so that 
kids know what to believe?

Now, that's not always possible of course. There are cases where we 
really aren't sure what the facts actually are. And IMHO that is a 
useful lesson too. If you're talking about the /origin/ of life on 
Earth, nobody has really conclusively figured that out yet. There's a 
bunch of plausible theories, but nobody is really anywhere near sure. 
But if you're talking about the /evolution/ of life... apart from a few 
lone crackpots, everybody unanimously agrees on the matter. So that's 
what we should teach.

Personally, I think they /should/ teach ID in schools. As an example of 
how to tell the difference between scientific fact and crude falsehood. 
(Apparently some people can't do this yet...)


Post a reply to this message

From: Invisible
Subject: Re: Molecular biology
Date: 10 Jan 2011 11:11:02
Message: <4d2b2f96$1@news.povray.org>
On 10/01/2011 03:59 PM, scott wrote:
>> Mathematical theories exist independent of the physical world. For
>> example, the Manhattan geometry surely doesn't describe any real-world
>> situation (except something really abstract like network topology).
>
> Err, you do realise why it's called Manhattan geometry?

Because it applies to the topology of the streets of Manhattan?

Like I said, I'm sure there's lots of other, similarly abstract things 
to which it also applies. It does /not/ however apply literally to the 
three-dimensional space that we all see around us.


Post a reply to this message

From: Jim Henderson
Subject: Re: Molecular biology
Date: 10 Jan 2011 11:32:19
Message: <4d2b3493@news.povray.org>
On Mon, 10 Jan 2011 10:38:58 -0500, John VanSickle wrote:

> This claim does not come strictly from uninformed masses.  It is also
> made by people more knowledgeable than you and I put together.

But in all the cases I've found, it comes from them when they reach the 
limit of their knowledge - then they fall back on "God did it" because 
they can't explain any further.

Jim


Post a reply to this message

From: Warp
Subject: Re: Molecular biology
Date: 10 Jan 2011 11:47:40
Message: <4d2b382c@news.povray.org>
Jim Henderson <nos### [at] nospamcom> wrote:
> On Mon, 10 Jan 2011 10:38:58 -0500, John VanSickle wrote:

> > This claim does not come strictly from uninformed masses.  It is also
> > made by people more knowledgeable than you and I put together.

> But in all the cases I've found, it comes from them when they reach the 
> limit of their knowledge - then they fall back on "God did it" because 
> they can't explain any further.

  While there most probably are such people in existence, I think it's
pretty rare for somebody to have the opinion "I have no idea how complex
life came into existence, but I don't think it was by natural processes"
without also believing that some kind of god or other intelligence did it
as a conscious and deliberate act. I have never heard of a hardcore atheist
proclaiming that he doesn't believe that life could have formed by natural
processes (although I'm pretty sure there a few of those as well, but as
said, the are probably are very small minority).

  Attributing unexplained phenomena to a god (much less to the Christian
God of the Bible) is one of the oldest fallacies, and one which gets
narrowed down more and more as science progresses. Nobody in their right
mind, not even the most hardcore fundamentalist believers, would claim
nowadays that eg. the flu is caused by supernatural demons or that lighting
bolts are supernatural manifestations of a god. Why? Because nowadays we
know exactly what causes them, so there's no need for a supernatural
explanation. The "God did it" explanation recesses further and further to
the more basic elements of nature. Some hundreds of years ago almost
everything was caused by some supernatural phenomenon, but nowadays the
argument has had to recess so much that there's almost nothing left. The
only couple of things left are the tired old "where did the universe come
from" and "how did life from on Earth", and that's about it. About everything
else has already been explained by science so clearly that not even the
most fundamentalist of believers can resort to them anymore.

  This is basically the "god of the gaps" argument, and it's getting pretty
flimsy.

-- 
                                                          - Warp


Post a reply to this message

From: Warp
Subject: Re: Molecular biology
Date: 10 Jan 2011 11:53:10
Message: <4d2b3976@news.povray.org>
Invisible <voi### [at] devnull> wrote:
> >>>     As for math, would you say that, for example, the branch of mathematics
> >>> called geometry studies how the real world works or not?
> >
> >> Which geometry? Euclidean geometry? Elliptic geometry? Hyperbolic
> >> geometry? Some sort of non-homogeneous geometry?
> >
> >> Pure mathematics studies these geometries purely for their own sake. One
> >> or other of them /may/ correspond to the real world.
> >
> >    The very word "geometry" means "measuring land" (from ancient greek
> > geo = earth/land, metri = measurement).

> And the very word "atom" means "cannot be cut". Not without a particle 
> accelerator, anyway...

  So what you are implying with that sentence is that the concept of geometry
being used to measure and describe the real world is bogus?

  (And if what you are implying is that geometry is not an accurate
representation of the real world, making it a non-science, then by the
same logic Newtonian mechanics is not science. Heck, General Relativity is
most probably not science by the same argument.)

-- 
                                                          - Warp


Post a reply to this message

From: Jim Henderson
Subject: Re: Molecular biology
Date: 10 Jan 2011 11:55:05
Message: <4d2b39e9$1@news.povray.org>
On Mon, 10 Jan 2011 11:47:40 -0500, Warp wrote:

> About everything else has already been explained by science so clearly
> that not even the most fundamentalist of believers can resort to them
> anymore.

Except that they do, of course.

Heck, Bill O'Reilly (one of the FOX News guys) just recently tried to say 
that nobody understands how tides work, and that's proof that God exists.

Of course, he's no astrophysicist (unlike Neil DeGrasse Tyson, who 
answered that question for him on The Colbert Report last week <g>), but 
even I know how tides work.  And I understand how the sun goes up and 
down every day, too (which O'Reilly didn't seem to know, either).

Jim


Post a reply to this message

From: Warp
Subject: Re: Molecular biology
Date: 10 Jan 2011 12:03:18
Message: <4d2b3bd6@news.povray.org>
John VanSickle <evi### [at] hotmailcom> wrote:
> Be that as it may, I am against the teaching of life's origins on the 
> public dime,

  The theory of evolution != the theory of life's origins.

  The theory of evolution says nothing about how life first came into
existence on Earth. That would be abiogenesis.

  Basically the only thing that the theory of evolution postulates is that
the genes of large populations change over time (something even the most
hardcore young-earth creationists don't deny) and that some changes get
preserved while others disappear due to natural selection (again, something
the creationists don't deny). That's about it.

> because it is a matter of public debate,

  The public doesn't get to decide the truth. That's just silly.

> What 
> invariably happens, when the government is allowed this power, is that 
> the people who are in the wrong will go running to the government to 
> have their view imposed by fiat, and all conflicting views suppressed to 
> one degree or another.

  So now teaching the theory of evolution is a government conspiracy. Right.

  Guess what happened to your credibility just now.

>  At the present moment a person who is skeptical 
> that natural selection is sufficient to explain the entirety of 
> observable living systems is subject to exclusion from participating in 
> scientific and educational endeavors, even when the topic has no bearing 
> on the origin of life.

  Would you also allow holocaust-deniers, 9/11 conspiracy theorists and
anti-vaccinationists to teach at public schools, just for "balance"?

-- 
                                                          - Warp


Post a reply to this message

From: Warp
Subject: Re: Molecular biology
Date: 10 Jan 2011 12:10:35
Message: <4d2b3d8b@news.povray.org>
Jim Henderson <nos### [at] nospamcom> wrote:
> Heck, Bill O'Reilly (one of the FOX News guys) just recently tried to say 
> that nobody understands how tides work, and that's proof that God exists.

  It seems that "nobody knows how this works" and "science has no explanation
for" are pretty common claims among young-earth creationists and conspiracy
theorists. What makes them rather egregious is that there most often *is*
a pretty good explanation for those things, but the person making the claim
has either been duped by someone that there isn't (and he lacks even the
most basic of independent critical thinking), he deliberately refuses to
accept the explanation (no matter how simple and understandable it might be)
or he is outright lying (which, I suspect, is a very common case).

  The sad thing is that this kind of claims will be believed by many who
already have a basic bias to accepting such claims. You can claim almost
anything to person holding a belief, and the person will accept the claim
completely uncritically if it supports his belief, without ever even
bothering to try to find out if it's actually true.

-- 
                                                          - Warp


Post a reply to this message

From: Jim Henderson
Subject: Re: Molecular biology
Date: 10 Jan 2011 12:46:41
Message: <4d2b4601@news.povray.org>
On Mon, 10 Jan 2011 12:10:35 -0500, Warp wrote:

> Jim Henderson <nos### [at] nospamcom> wrote:
>> Heck, Bill O'Reilly (one of the FOX News guys) just recently tried to
>> say that nobody understands how tides work, and that's proof that God
>> exists.
> 
>   It seems that "nobody knows how this works" and "science has no
>   explanation
> for" are pretty common claims among young-earth creationists and
> conspiracy theorists. 

Indeed that does seem to be the case.

> What makes them rather egregious is that there
> most often *is* a pretty good explanation for those things, but the
> person making the claim has either been duped by someone that there
> isn't (and he lacks even the most basic of independent critical
> thinking), he deliberately refuses to accept the explanation (no matter
> how simple and understandable it might be) or he is outright lying
> (which, I suspect, is a very common case).

I would tend to agree.  That's the problem with religious (or any 
superstitious, for that matter) belief.  Anything that flies in the face 
of that deeply held belief tends to be discarded (unless the person is 
perfectly willing to accept the dogma as being incorrect - and in 
fairness, some religions do seem to promote critical thinking - Judaism 
comes to mind).  Some people just can't accept that things don't work the 
way they think they work, even if they have absolutely no scientific 
background that would help them understand the actual science of how it 
works.

In O'Reilly's case, he seems to have flunked basic physics and/or 
geometry.  Take two spherical objects, rotate one around the other while 
spinning it, and see how the objects look in relation to each other.  
OMG, the sun goes up and down regularly because there's an actual 
physical explanation!  Who would have known that?

(Well, in Galileo's time, certainly, that was questionable - but it's 
frightening to think that someone living in the modern world has only the 
scientific understanding that was popular several hundred years ago).

>   The sad thing is that this kind of claims will be believed by many who
> already have a basic bias to accepting such claims. You can claim almost
> anything to person holding a belief, and the person will accept the
> claim completely uncritically if it supports his belief, without ever
> even bothering to try to find out if it's actually true.

Yes.  Belief presupposes proof, because with proof, one doesn't need 
belief.

But I accept that some people aren't content with there being things they 
don't know - so if they have to belief in a big guy in the sky in order 
to be content, that's fine with me, so long as they don't prevent the 
rest of us from sharing how things *actually* work with those who want to 
know how things actually work.  For example, pushing creationism as 
"science" in the classroom.  I'm sorry, but "God did it" isn't a 
scientific principle, and it doesn't belong in a science classroom.  You 
want to teach that in church, fine.  Go ahead.  Knock yourself out.  Oh, 
and give kids the choice to decide for themselves whether they want to 
bury their heads in the sand and just accept "God did it" as an 
explanation for everything or if they want to learn how it really works - 
even if *nobody* knows.  Hell, *especially* if nobody knows.

But keep it out of the public school classroom.

Jim


Post a reply to this message

From: Darren New
Subject: Re: Molecular biology
Date: 10 Jan 2011 13:02:39
Message: <4d2b49bf$1@news.povray.org>
Warp wrote:
> without also believing that some kind of god or other intelligence did it

Interestingly enough, all the "evidence" for ID is equally explained by 
evolved outer-space aliens doing genetic engineering on Earth. Even *if* you 
accept that evolution couldn't have produced the eye, or flagellum, or 
whatever, you *still* don't get to say it must have been God, unless you 
also rule out life anywhere else in the universe.

-- 
Darren New, San Diego CA, USA (PST)
   Serving Suggestion:
     "Don't serve this any more. It's awful."


Post a reply to this message

From: Darren New
Subject: Re: Molecular biology
Date: 10 Jan 2011 13:04:46
Message: <4d2b4a3e$1@news.povray.org>
Invisible wrote:
> And then, of course, there's Stephen Wolfram, who suggests that not just 
> matter but time itself is quantum, and that the universe is actually a 
> giant cellular automaton, and that the observed quanta are actually the 
> cells of the cellular grid. (They guy probably needs to put down the CA 
> simulator and go outside for a little while.)

He's far from the first person to come up with that idea. And I'm also 
pretty sure Wolfram thinks the network connections between cells are far 
smaller than an individual particle or quark or whatever.

-- 
Darren New, San Diego CA, USA (PST)
   Serving Suggestion:
     "Don't serve this any more. It's awful."


Post a reply to this message

From: Darren New
Subject: Re: Molecular biology
Date: 10 Jan 2011 13:05:34
Message: <4d2b4a6e$1@news.povray.org>
Invisible wrote:
> The fundamental difference between ST and ID, of course, is that ST has 
> a realistic possibility of becoming testable some day soon. ID does not.

ID is testable. It just failed the tests. But it's certainly testable.

-- 
Darren New, San Diego CA, USA (PST)
   Serving Suggestion:
     "Don't serve this any more. It's awful."


Post a reply to this message

<<< Previous 50 Messages Goto Latest 50 Messages Next 50 Messages >>>

Copyright 2003-2023 Persistence of Vision Raytracer Pty. Ltd.