I had a conversation about this with a friend. It was late and we were outside on a clear night. We were talking about different theories of how the universe is supposed to end, and the likelihood of it ending with accelerated expansion and a big chill. But that if it goes the other way, and at some point the universe starts contracting again, that could lead to another big bang, and maybe at some point in the very distant future, two other people would the same conversation on another night. We weren’t high, I promise!
It was one of those wandering, late-night talks. We were pointing out different stars to each other and shit. He wondered if it mattered that we were out there having this conversation, in light of what we were talking about. In the end, we decided it was enough that we were there.