>> By the time it got to the part about "maybe at some point in the 
>> future we will have the technology to design our own genome and travel 
>> back in time to seed the Earth with it", I was in a state of utter 
>> disbelief. *How* can somebody who claims to be a scientist seriously 
>> propose such nonesense?!
> 
> Hmm, can't a scientist speculate?  Thought experiments, anyone?

"Hmm, how could something this complex have arrisen? Well, maybe it was 
designed by aliens from another planet."

"Well, yeah, but then how did *they* arrise in the first place? You 
haven't really answered the question, just moved it to another planet."

"Hmm, well, maybe in the future *we* will became sufficiently advanced 
to both design entire genomes and also travel through time. So maybe 
*we* are the 'aliens'?"

"Uh... now you've just hidden the problem inside a temporal paradox 
instead of answering it."

-- 
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*

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