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Lumifer comments on Entropy and Temperature - Less Wrong Discussion

26 Post author: spxtr 17 December 2014 08:04AM

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Comment author: Lumifer 18 December 2014 02:33:15AM 0 points [-]

So, effectively there are two different things which go by the same name? Temperature_entropy is one measure (coming from the information-theoretic side) and temperature_kineticenergy is another measure (coming from, um, pre-Hamiltonian mechanics?)..?

That makes some sense, but then I have a question. If you take an ice cube out of the freezer and put it on a kitchen counter, will it melt if there is no one to watch it? In other words, how does the "temperature is in the mind" approach deal with phase transitions?

Comment author: buybuydandavis 19 December 2014 02:28:42AM 0 points [-]

So, effectively there are two different things which go by the same name?

They look like two different concepts to me.

In other words, how does the "temperature is in the mind" approach deal with phase transitions?

I don't know. I suppose that would depend on how much that mind knows about phase transitions.

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