We were in a global bull market because we had too much "fiat money" in the markets, after massively investing in real estate they had to pour the money somewhere else, so they created a self-fulfilling situation where the more they invested the more companies' value increased which drove retail investors in the market too...
Now, the retail investor is losing his feathers after all the institutional ones took the gains...
Basically, get ready for a 2-3 years bear market.