No seriously what is Entropy

 I always found the popular science description of entropy as ‘disorder’ as a bit unsatisfying.

It has a level of subjectivity that the other physical quantities don’t.  Temperature, for example, is easy- we all experience low and high temperatures, so can readily accept that there’s a number which quantifies it. It’s a similar story for things like pressure and energy. But no one ever said ‘ooh this coffee tastes very disordered.’

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