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clipka <ano### [at] anonymous org> wrote:
> Makes sense; after all, according to quantum mechanics there /is/ such a
> thing as conservation of information...
If I understand correctly, "information" is a bit vague of a concept,
but it's mostly linked to entropy. In other words, roughtly speaking,
an increase in information means a decrease in entropy.
Which thus means that the total amount of information in a closed
system cannot increase. Information can, of course, increase locally,
but that means that entropy has also likewise increased by at least
that much somewhere else inside the same closed system.
For example, by writing this very text I'm adding information to a
system, and thus decreasing entropy, but at the same time I'm increasing
entropy by at least that much (mainly in the form of waste heat.)
What I'm getting at is that while the total amount of entropy in a
closed system can never decrease, it *can* increase. If information
is closely correlated to entropy, it means that the total amount
of information in a closed system can likewise decrease.
But then, perhaps "information" in QM means something else entirely,
and is more related to the various conservation laws (such as
conservation of momentum).
--
- Warp
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>> I posit that sanity obeys a similar conservation principle. When I work
>> on a really old piece of code, as my work progresses the code becomes
>> more sane - but I become less sane...
>
> Makes sense; after all, according to quantum mechanics there /is/ such a
> thing as conservation of information...
>
> (... and it appears that black holes violate this law by swallowing
> information, so yes, sanity in the universe is slowly declining...)
Isn't that why Hawking radiation was invented?
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Am 26.06.2014 09:23, schrieb Orchid Win7 v1:
>>> I posit that sanity obeys a similar conservation principle. When I work
>>> on a really old piece of code, as my work progresses the code becomes
>>> more sane - but I become less sane...
>>
>> Makes sense; after all, according to quantum mechanics there /is/ such a
>> thing as conservation of information...
>>
>> (... and it appears that black holes violate this law by swallowing
>> information, so yes, sanity in the universe is slowly declining...)
>
> Isn't that why Hawking radiation was invented?
No, although it was certainly a smart move :)
Hawking radiation is a necessary consequence of the insane idea that the
vacuum of space-time is filled with virtual particle pairs that keep
popping into and out of existence; if one such pair is forever torn
apart by a nearby black hole, the surviving particle wanders the
universe aimlessly in grief and woe, calling itself Hawking radiation
henceforth, while its beloved partner, in an act of desperate madness,
takes revenge on the black hole in a suicidal run, destructively
recombining with it instead of with the escapee.
Whether the escapee is able to carry messages from the poor guys trapped
inside the black hole is a hairy (or bald) question that is still up for
debate, and was the subject of an insane bet by Hawking himself.
("Thorne-Hawking-Preskill bet")
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