Consciousness: Is it seperate from the human body?

[Mudhammam]

Following that train of thought, if consciousness fades back to the nothingness from which it began, would it be logical to assume that the nothingness that one's particular consciousness so easily faded into the world from and back to, could do it again?

Well, there's certainly Nietzsche's interesting conception of the "Eternal Recurrence" that seems logically necessary given infinite time, but I admit I fail to see any logic in infinities.

I think the more interesting point is, if say, the entire Universe as it presently is were to repeat itself at some future point, and this conversation were to occur again between two people with identical compositions in the exact same time and space, in precise proportionality to the rest of the Universe, say even, that at this very moment this re-occurrence is taking place, in what sense is it really meaningful to speak of these past or future selves of ours as actually us? I certainly feel no affinity to any other so-called past lives.