>>14181356>1000 terra watts foreverSynthesize usable amounts of anti-matter
Make aluminum dirt cheap
Make all the gasoline we want out of direct air capture of CO2 and air moisture.
Make a city-sized airplane that's always flying.
Make all the magnesium we want out of seawater.
Make it common to own cyrogenic freezers, so people can put a bunch of their blood in it during their 20's and reintroduce it to themselves in old age, like that experiment that made rats live 50% longer (currently would cost about $3000 a year for power in Washington State).
Direct a laser or microwave beam into space to power asteroid material processing.
