> Actually, time (and maybe space) are infinite (countably so, thanks to Heisenberg's Uncertainty Principle) ? Time is infinite in theory, but not practically.

> Actually, time (and maybe space) are infinite (countably so, thanks to Heisenberg's Uncertainty Principle) ? Time is infinite in theory, but not practically. Time is fairly meaningless after the heat death of the universe. Some quantum field theories also suggest that spacetime becomes unstable if energy falls below a certain density IIRC, so even spacetime expansion might have a limit.