I was intrigued when I read that earlier but I didn’t know what to compose as a response.
I mean it seems logical as a physics but I don’t know if it’s reflective of our physics.
I think the distinction between a powder behavior and a liquid behavior is attraction. Liquid is attracted to itself, powder is repelled by itself but both flow into the shapes of their containers.
well, there’s surface tension with liquids – they all have a kind of crust
—-well, they don’t have a crust — a crust forms at the interface between one liquid substance and anything else