Yes, "domesticate" is certainly better.
They will have to rely on stocked up matter eventually as everything gets wider and wider apart and new rocks become harder to find. It might be more convenient to convert the best part of it to antimatter and annihilate it in small quantities than to...
Good point.
Does this also happen when dark matter falls in? If that's a feasible way to convert dark matter into ordinary energy, the refugees should not experience shortage if they manage to pet a black hole.
Dear All
As I have understood, there will be only cooling chunks of matter like stray planets, neutron stars, brown dwarves and all other kind of debris left of our Universe in 10^20 years, which continue drifting apart as the Universe expands on (let us assume that it does). They will...