The way I've been thinking about it: there is too much money trying to pour into the market. That's why valuations are so high.
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 :)
No, the crash (that we all know is coming) will do that. Until then, history teaches that we'll just keep going up and up
There is nowhere else for that money to go
> there is too much money trying to pour into the market
Keep in mind that inflation ran over 7% annualized in April [1].
[1] https://www.bls.gov/news.release/cpi.nr0.htm