[maciejw]

I also liked the article. I lack theoretical knowledge to determine if the system that is affected by gravity can still be considered "isolated" as per 2nd law of thermodynamics. I think this is not really relevant here, as the article focuses more on the common mental model, that disorder always increases with time. This model is not only incorrectly labelled (as entropy), but also misleading when used to describe some processes in the world.

This oil/vinegar example is immediately useful for other areas too. We have oil and vinegar in the dressing. They eventually become separated and we need to put effort to mix them together. Now replace oil and vinegar with leave/remain, blue/red or whatever else...