I am loathe to admit I was a fan (though not really a boy about it) in the early days of Tesla and SpaceX. I don't even necessarily think I was wrong at the time, mind you — whether or not he deserved the credit for their achievements, his companies were pushing electric cars and rocketry in the right direction IMO — it's just sad to see that once the curtain was pulled back, there was nothing but a narcissistic and delusional huckster behind it all.
It's not either/or, it's because. I'm constantly craving novelty, which has led me to learn a little bit about almost everything, quite a bit about many things, and achieved mastery of nothing. Hell I've been playing guitar for 25-odd years, and that's pretty much the only exception, but even there, I'm nowhere near as good as I "should" be with that much experience.
I can C+ to B just about anything that interests me, but God help me beyond that point.