> It's still a market, so market logic should apply.
How many levels of deranged libertarianism are you on? The market never makes mistakes?
> I see the same shit with real estate.
Right, and the real estate market spectacularly imploded and took the global economy down with it when it turned out the market was wrong. Is that your point?
> When there's information that all market participants know, the market price should reflect that information.
It should, but it empirically does not. "The market can remain irrational longer than you can remain solvent" - i.e., smart investors know that you don't bet against a bubble, even if you're 100% right that it is a bubble, unless you have very deep pockets, because you can't know how long it will continue to grow (and thus how much money you'll lose) before it pops.
Even if you know it's a bubble, the rational thing to do is to ride with it, make as much many as you can and try to get out at the right time. Hence bubbles can exist and grow even if every participant knows what's going on.