Maybe getting more of these big private companies public will bring valuations down a bit.
(Just my impression. No math or financial studies behind it :)
Keep in mind that inflation ran over 7% annualized in April [1].
Everything else is up around 3% YoY. And if energy and transportation are up double digits, and producer prices are up double digits, other consumer prices will follow.
This isn't true of AI companies...yet. But these are companies entering the market with pre-IPO userbase (including lots of B2B) numbers that Meta and YouTube would have dreamed of before their acquisition/IPO.
I think this whole situation is very sleazy and corrupt, but ultimately my prediction is that nothing serious will come of it. Even the exposure of index and passive investing is overstated.