You assume he’d act rationally and invest in even more ridiculous wasted of money…
He’s not smart enough to keep a backup, because even if it’s just a million, he’ll think he can turn it into a billion.
As rich as he is, he’ll live another 40 years. More than enough time to burn all his money. Don’t forget everything is leveraged against each other, his money is built on stock prices, and he’s picking a fight with Brazil while using a shit ton of drugs
If Space X loses it’s governments contracts, literally everything would go up in smoke and he’d desperately try to make what he lost back.