I don't think these questions are really very interesting. "When is a day no longer sunny, but cloudy?" There is probably a name for this class of things, where

I don't think these questions are really very interesting. "When is a day no longer sunny, but cloudy?" There is probably a name for this class of things, where there's some fuzzy-ish boundary. But it seems like s mistake to get caught up in it as if it makes a difference. Sorta like arguing over what life is. Is a plant alive? But plants aren't like animals, so what then? It actually seems like arguing about definitions.