Honestly, yeah, fair point. There's enough money in tech to keep the party going for who knows how long.

The housing market was unsustainable for a long time and went even further up before it crashed. The smart people who called that have lost a lot of money making reasonable bets against things which should have crashed.

The difference now is rich people have positively stupid amounts of money to keep stupid things going for even stupidly longer periods of time.