UBI needs to happen like NOW, but I can't decide if it should be flexible or flat. Say you're a tall, muscular person, and you need more than average to maintain calories... should you get more food to account for that? I think you should. I think everyones caloric requirements for COMFORT (not just survival) should be accounted for and you're given how much food YOU need to be ok. Every person should be getting a whole chicken every day, bread every day, milk every day, for free, delivered to them.
Star travel, terraforming, changing the orbit of a planet to make it habitable, good stuff, the moon will be a nice getaway spot one day, complete with palm trees