idk but I keep most of my wealth in stablecoins or cryptocurrency. The yields are better than a bank and I can withdraw more from Coinbase in a day than my bank would let me wire per day anyway, so why not?
Economy has a risk-free rate of return, that of 1-year treasuries, at 0.05% currently. Anything above that involves risk. A rate of return of 7%/year means there's 7%-0.05% chance of the instrument being worthless after one year, ~14% chance of it losing half its value, ~28% chance of it losing a quarter of it's value, etc. There's no free lunch, and there's no financial arbitrage
This is a textbook example of a "gray swan".