Elon is playing with some things, even if not 100%. At the moment he aybe sad because the Cybertruck is not selling so well, the advertising for the car is well. Or if one of his spaceX rockets explodes, then he will definitely sad. But he is a gamer and i guess with so much money he will see some of it as play money. There are almost no limits for him, so why not play with bitcoin too. He has done the same with dogecoin in the past. I hope that one day he will manage to create a colony on another planet. Or maybe one of his children will do it.