He’s not smarter than the ones that came before him and did both. There’s a reason it’s never done and certainly never done successfullyHe says a couple of times in this piece that it's a process he's trying to navigate.
Odds are against him, but he should go for it.
I've heard people say he's costing himself in both sports by splitting time between the two. Who gives a shit if it makes him happy. It's his life.