The snarky side of me wants to say, "But only if the space-time continuum has been ruptured, and then, you need to exercise extreme caution because no two objects can occupy the same space at the same time, and if you literally run into yourself, you could destroy yourself, or the entire timeline, then mankind as we know it would devolve into mass hysteria, dogs and cats living together, that sort of thing."

I need to go to bed now.