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Author Topic:   Thermodynamics
PaulK
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Posts: 17828
Joined: 01-10-2003
Member Rating: 2.3


Message 56 of 159 (185092)
02-14-2005 11:07 AM
Reply to: Message 54 by Jordo86
02-14-2005 10:56 AM


Re: Stay on Track
The question doesn't really have a lot to do with evolution. Consider the whole reproductive process - don't you think that going from a single cell to an adult human is an amazing increase in order and complexity ? And that - rather than evolution - is the level where thermodynamics most obviously apply.
And the reason it works is because there is no law saying that they must break down. The 2nd Law of Termodynamics applies everywhere but it does not say that there cannot be localised increases in even thermodynamic order ("order" in the ordinary sense of the term really doesn't correspond to anything in thermodynamics).

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 Message 54 by Jordo86, posted 02-14-2005 10:56 AM Jordo86 has replied

Replies to this message:
 Message 58 by Jordo86, posted 02-14-2005 11:27 AM PaulK has replied

  
PaulK
Member
Posts: 17828
Joined: 01-10-2003
Member Rating: 2.3


Message 62 of 159 (185106)
02-14-2005 11:44 AM
Reply to: Message 58 by Jordo86
02-14-2005 11:27 AM


Re: Reproduction
Thermodynamics doesn't give you any breaks for "following a code". And it realy isn't as simple as saying that our body shuts down. Cancer cells for instance can keep on dividing much like bacteria - and that's a major part of the problem with them (there's a strain that's still going, now - more than 50 years after the woman they were taken from died http://www.madsci.org/.../archives/may97/860431113.Cb.r.html )
The origin of the first replicators is outside of evolutionary theory (since they COULDN'T have been produced by evolution) and we know little about it. However there's no reason to suppose that it required a genuine violation of the 2nd Law of thermodynamics. Moreover, there's no reason to suppose that the first replicartors had to "die" to reproduce or that they used "code" (more likely they involved an autocatalytic reaction). And no, there is no reason to assume that the process involves even ONE violation of the 2nd Law - let alone many as you claim.

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