Neil Turok points out that the prospect of an end of time in the future, combined with the existence of our cosmic horizon, places hard boundaries on the universe, and thus helpful limits to the problem of understanding it all. A light wave traveling across a limited, expanding, accelerating universe can undergo only so many oscillations, even into the infinite future. “We live, effectively, in a box, okay? Which is finite. And if that’s true, I think it’s to be welcomed because we could understand it. The problem of understanding the universe just got a whole lot easier because it’s finite,”
...more
