For the incumbents and newcomers it is impossible to exit without another huge ROI (10x, 100x) since crypto billionaires cannot cash out to billions of US dollars. They need to routinely pump & dump and hope that the music doesn't stop.

Somebody doing taxes this year is going to be on the hook for last year's BTC prices, and by god, they need it at least 100% ROI just to break even after paying taxes in the US.