Interesting article. Thanks. And yeah I strongly agree that there are a lot of questions about how childbirth outside of Earth will work. Another simple issue i

Interesting article. Thanks. And yeah I strongly agree that there are a lot of questions about how childbirth outside of Earth will work. Another simple issue is would people born on Mars even be able to ever return to Earth (assuming they're otherwise healthy)? How the body will evolve and adapt when all you've known is 1/3rd g is an interesting and open question that we're only going to be able to completely answer by doing. I also completely agree with everything re: Earth. But one thing I'd add there is that I think humanity actually starting to settle Mars will dramatically shift the mindset of both people and countries. Imagine China was engaging in mass transit to populate and build up New Beijing. It's not like the US would simply stand by. And today I think many people are not so interested in these ideas, because they think it's simply impossible. I'm thinking more like New World parallels rather than Space Race.