It depends on who is asking. If it is a "good" philosopher, who is in on the quest to unveil the nature and laws of what is, then it is settled. If, however, y

It depends on who is asking. If it is a "good" philosopher, who is in on the quest to unveil the nature and laws of what is, then it is settled. If, however, you are fond of joggling with abstractions and of studying of philosophers themselves and various philosophical systems (instead of what is) then, of course, you could put together yet another pile of abstractions and even systematically compare it with another pile of abstractions, and so on. Lots of people do. Universe is one (at least we and everything else is bound by this one single unfolding process we call Universe) while abstractions are infinite, and most of them are disconnected from what is - they generalize nothing but other disconnected abstractions.