Dude, uhm, I majored in philosophy, and not in clown college. Turn down the condescending didacticism just maybe to a 9. The contention that a thing (person, chair, whatever) can be *anything* at *any time* is violence against language and reason. I don't remember Hobbes directly addressing this what-evidently-has-now-become-a-question (I suspect he would have considered the question itself to be sorta nuts), but Hegel certainly did, and he came down fairly definitively on the side of things (people, whatever) being discrete, even if his assertion that this being is somehow suspended in its relationship to other things seems a little shaky (to me). I can't really think of a meaningful Western philosopher (post-Greek, pre-Postmodern, anyway) who contended that "identity" was somehow "an illusion". I mean if you're a Buddhist or whatever, good for you, but let's not attempt to conflate that with serious thought, study, intellectual rigor, etc. Words mean stuff and you are a discrete thing which exists and is irreducible in some fashion.