# Evolution and the Second Law of Thermodynamics

**URL:** https://discourse.peacefulscience.org/t/evolution-and-the-second-law-of-thermodynamics/2506
**Category:** Side Conversation
**Tags:** Science
**Created:** [October 31, 2018, 3:45pm UTC](https://discourse.peacefulscience.org/t/evolution-and-the-second-law-of-thermodynamics/2506 "2018-10-31T15:45:39Z")
**Posts on this page:** 1
**Showing post:** 33

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### Author: ![Patrick](https://avatars.discourse-cdn.com/v4/letter/p/b2d939/32.png) [@Patrick](https://discourse.peacefulscience.org/u/Patrick)
#### Post date: [November 2, 2018, 5:01am UTC](https://discourse.peacefulscience.org/t/evolution-and-the-second-law-of-thermodynamics/2506/33 "2018-11-02T05:01:59Z")

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> [@Mung](#):
>
> Does it refer to a probability? If so, the probability of what? pi where pi is the probability is some event or the probability of the outcome of some experiment? Something else?

p refers to a particular state the system is in or a particular message p to be sent.

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