Re: God's Utility Function

On Oct 13, 5:58=A0pm, "Perplexed in Peoria" <jimmene...@xxxxxxxxxxxxx>
wrote:
"Tim Tyler" <seemy...@xxxxxxxxxxxxxx> wrote in messagenews:gco1gu$1bbn$1@=
darwin.ediacara.org...

=A0http://originoflife.net/gods_utility_function/

Tim, I'm afraid your logic isn't very clear in this essay. =A0You are dis=
cussing
"self organizing systems [in which the] rate of entropy production [is]
=A0maximised. These were sometimes known as "dissipative structures" -
=A0because they dissipated order, and produced disorder."

Close enough, but then you write: " ... a mechanism was found to explain
the phenomenon. At a low level, high- entropy states are more common
than lower entropy ones - so if a dynamical system changes in some
randomly selected way, it is likely to move into a higher-entropy state.
This simple principle drives systems of all kinds to rapidly move from
low-entropy states towards high-entropy ones."

Sorry, Tim. =A0The mechanism you describe explains the 2LoT itself; i.e
it explains why *entropy* tends to be maximized.

It does nothing to explain why the *rate of entropy production* should
be maximized (and maximized only in *some* complex systems but
minimized in some other (slightly simpler) ones)

See:
Maximum entropy production and the fluctuation theorem - R C Dewar
2005
http://www.iop.org/EJ/abstract/0305-4470/38/21/L01/

2LoT only gives the *sign* of entropy changes. Dewar's idea deals
with rates -
and is more comprehensive.
--
__________
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reply.

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