Retiring at 57 is pretty risky. Hopefully his savings hold out. He's looking at 30 more years of life. Personally I would be too cautious to leave this early.
Edit: risking -> risky; fixed life sentence
Edit: risking -> risky; fixed life sentence
Assuming he lives past 100, and gets zero interest/return on his ~200 billion net worth, he’ll need to somehow keep his spending below about a thousand dollars a minute to survive.
Sounds like real poverty to me...