On Mon, Feb 20, 2012 at 07:33:13PM +0100, Evgenii Rudnyi wrote:
> I have nothing against Adami's book as such. His description of his
> software avida and his experiments with it are okay. My point was
> about his claim that his work has something to do with
> thermodynamics. It is definitely not. The thermodynamic entropy is
> not there. The quotes from the book displays this pretty clear.
> You have written about "an analogous role". I would not object if

Chris uses the word analogy to connect mutation and temperature. But
not between information and entropy.

> you say that there is an analogy between the thermodynamic entropy
> and information. Yet, I am against the statement that the
> thermodynamic entropy is information and I believe that I have given
> many examples that show this. Thermodynamic entropy is not
> subjective and not context dependent*, so my claim is that Adami
> does not understand what the thermodynamic entropy is. He has never
> taken a class in experimental thermodynamics, this is the problem.

I can't speak for Chris, but somehow I doubt that very much.

> * I would accept the notation that the entropy is context dependent
> in a sense that its definition depends on the thermodynamics theory.
> If we change the theory, then the entropy could have some other
> meaning. But it seems not what you have meant.

It is true that in thermodynamics, there is usually little argument
about what the macroscopic variables are. As a consequence, entropy is
essentially an objective quantity, and the context fades into the

But even between (micro-/grand-) canonical ensembles, there are subtle
differences between what macroscopic variables are significant, hence
difference between the entropies, which vanish in the thermodynamic


Prof Russell Standish                  Phone 0425 253119 (mobile)
Principal, High Performance Coders
Visiting Professor of Mathematics      hpco...@hpcoders.com.au
University of New South Wales          http://www.hpcoders.com.au

You received this message because you are subscribed to the Google Groups 
"Everything List" group.
To post to this group, send email to everything-list@googlegroups.com.
To unsubscribe from this group, send email to 
For more options, visit this group at 

Reply via email to