Can concepts exist if humans or animals don't exist at all? Can't other things that have no mind make abstraction or concepts?
For example, I think abstract things such as redness (quality) and brightness (state) are all concepts. And of course redness or brightness can exist without humans and God and animals. (I mean I think concepts exist independently in other worlds such as idea as Plato says, but not exactly, I think nature, which has no mind, can make abstraction even though it's by coincidence or without intention).