The market has remained irrational far longer than any of us can remain solvent. Eventually Coyote has to look down and fall... right?
I suppose I'd have to watch the Fed, which is holding interest rates at basically zero, and thus continuing to pump money into the asset markets. It's not causing CPI inflation because what goes into the asset markets isn't increasing demands for milk, and while it's weirding the real estate market, it's swamped by pandemic-based real estate weirdness.