The start of the bubble popping was the increases in interest rates. We’ve seen several online companies shut down already because the free money isn’t there any more and there is no path to monetization.
The problem with the Fediverse right now is that it is all run on volunteer labor and donations, similar to an early Reddit. It will be interesting to see how a distributed system solves this problem.
Some AI models already argue when people point out inaccuracies, just like on Reddit.