> I don't think you see this definition in a physics education until you do a course on statistical mechanics? I'm over 60, and I only recent discovered the de

> I don't think you see this definition in a physics education until you do a course on statistical mechanics? I'm over 60, and I only recent discovered the definition of entropy recently thanks to Leonard Susskind youtube videos. For 60 bloody years I only got the dumbed down version about "disorder" and it made absolutely no sense to me whatsoever. Now I see the same confusion in others - like here on HN were to people where duking it out over whether one arrangement of a pack of cards (all individually identifiable of course) had more entropy than the other. This dumbing down does nobody any favors whatsoever. It certainly doesn't promote understanding of the basic principles.