I know little about cosmology, but is it not the case that:
If dark matter exists the universe is more likely to end in a cosmic
crunch, relatively soon.
If it does not exist the universe will end with heat death much farther
into the future.
Just curious about this . . .
Freeman Dyson wrote an essay saying that with a large enough reserve of
energy civilization might last "indefinitely" or perhaps he said
"infinitely" long in a heat-death scenario. I do not understand what he
had in mind. You have to run out eventually.
- Jed
