Yes, but they didn't listen to their gut or the many warnings. You had people leveraging huge sums of money to buy BTC $70k with price predictions in the $100-$200k range. The warnings were risk assets, bubble, fed shifting policy, etc, etc. Once the fraud started shooting through the roof it was a pretty obvious last sign of mania. That's coming from someone that has crypto but it's about 3% of my investment and I bought it a year ago.