> enough to create enough living area for something like 10^16 to 10^18 people. Enough for them to do .. what? Trapped in a closed box, with no unexplored 'nat

> enough to create enough living area for something like 10^16 to 10^18 people. Enough for them to do .. what? Trapped in a closed box, with no unexplored 'natural' non-engineered habitat, nothing to dig for, no unknown/unowned resources, no resources to use to escape. Enough to let the cylinder owners extract money from their non-optional labours? Then it will certainly happen, but that doesn't make it look a happier or more desirable future.