Re: Notions of entropy

Posted by Jochen Fromm-5 on
URL: http://friam.383.s1.nabble.com/Notions-of-entropy-tp7584006p7584010.html

Nice to see the list is still alive :-) Entropy as
information in disguise. Interesting. Isn't Entropy
related to disorder, that is to say lack of information?

-J.

On 10/11/2013 11:10 PM, Russell Standish wrote:

> I'd say bollocks to that. Entropy is clearly information in
> disguise. That changes in it can also be related to the amount of heat
> processed at a given temperature is also something that comes out of
> considering rearrangements of kinetic molecular motion, and ultimately
> gives rise to the well known Landauer limit on computing.
>
> On Fri, Oct 11, 2013 at 02:00:35PM -0600, Nick Thompson wrote:
>> At Friam today, we had our first discussion of entropy in a while.   It was
>> like old times.  I really enjoyed it.
>>
>>  
>>
>> But the following disagreement came up.   I am, I think, a bit of what
>> philosophers call an essentialist.  In other words, I assume that  when
>> people use the same words for two things, it aint for nothing, that there is
>> something underlying the surface that makes those two things the same.  So,
>> underlying all the uses of the word “entropy” is a common core, and ….
>> Here’s the tricky bit … that that common core could be expressed
>> mathematically.  However, I thought my fellow discussants disagreed with
>> this naïve intuition and agreed that the physical and the information
>> theoretical uses of the word “entropy” were “not mathematically equivalent”,
>> which I take to mean that, no mathematical operation could be devised that
>> would turn one into the other. That the uses of the word entropy were more
>> like members of a family then they were like expressions of some essence.
>>
>>
>>  
>>
>> I wonder what you-all think about that.
>>
>>  
>>
>> Nick
>>
>>  
>>
>> Nicholas S. Thompson
>>
>> Emeritus Professor of Psychology and Biology
>>
>> Clark University
>>
>> http://home.earthlink.net/~nickthompson/naturaldesigns/
>>
>>  
>>
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