Living on planets doesn't really make much sense in the long run. We talk about doing it, and terraforming planets, because we're familiar with living on planet

Living on planets doesn't really make much sense in the long run. We talk about doing it, and terraforming planets, because we're familiar with living on planets. Bezos sees that, though. He's a big fan of O'Neill cylinders and similar. It's Musk who wants to go try and get us to live on Mars.