Capitalism will die, it's inevitable. The planet will run out of resources.
Hard to sell to the old folks though, especially those who think Jesus put dinosaur bones in the ground.
Nonsense. The planet has exactly the same atoms, in exactly the same proportions, as it had a million years ago (give or take a small fraction of 1% due to meteorite impacts, the space program, and radioactive decay). It also has the same amount of energy (again, give or take a tiny fraction of 1%) pouring down on it every day.
Matter and energy. Only thing you need after that is brainpower.