It's interesting that Elon said that at first he wasn't sure re-usable rockets were feasible, but he's sure about it now. And he said it would only be a few more years until the technology was perfected and manned flights were implemented. I have no doubt that he'll accomplish all that, and I won't be surprised if his vehicles were the ones to bring the first settlers to Mars. On a side note, I bet Grimes picked out that bandit mask he was wearing. And even though the discussion was supposed to be about the Crew-2 launch, most of the questions were directed at Elon and his efforts to perfect his space ships. Even with no sleep, the other people there were like NPC's compared to him. Lol