#optimusUnmoderated tagAll postsTrending CommunitiesSplinterlandsScrobble.lifeHIVE CN 中文社区WorldmappinActifitPhotography LoversBlack And WhiteSnapsHive FoodGEMSHive LearnersLiketuExplore Communities...#optimusTrendingHotNewPayoutsMutedkiwithinker (65)in STEMSpace • 22 hours ago1,000,000 vs 1,000 - which is best?1,000,000 vs 1,000 - which is best? Elon Musk has said for years that a self-sustaining Mars city needs about a million people and on the order of a million tonnes of cargo. If…
