> Given that we can't figure out how to build subterranean cities at scale on earth, I'm not sure what the plan is for dealing with that. Some ideas and napkin

> Given that we can't figure out how to build subterranean cities at scale on earth, I'm not sure what the plan is for dealing with that. Some ideas and napkin calculations: https://marshallbrain.com/mars https://marshallbrain.com/mars