This seems like a weird thing to worry about right now, I imagine my question would be "hey, where'd all the deposits go?" Like, I'm sure it's all interesting in a psychological and sociological way, but "what does SBF really believe" feels like it should take a back seat to what did he do. That's much more interesting! It's easy for someone like SBF to just say stuff about what's going on in his head, whether it's true or not. But, we're talking about real (and, okay, a lot of fake) money here.
There's this weird assumption in a lot of reporting that a rich person must have interesting things to say, or beliefs that are worth getting to the bottom of. Sometimes that's true, but sometimes they're just not very interesting people. Which is fine! Lots of people aren't very interesting, but really rich people get to be treated as interesting even if they're actually boring.