That’s been my survival mechanism. I’d be homeless otherwise but I was able to hyperfixate on work related things and become a workaholic after failing out of school (where I couldn’t focus on courses I didn’t like).
My life/work balance has never been good, but its awesome to be fixated on the thing people pay you money to do.
Former twitter engineer here. Maybe he paid more attention at his other companies but Elon was comically clueless about how the twitter machine worked. Hiring geohot and thinking a firmware cracker could make heads or tails of a massively distributed system was pure idiocy.