Earlier quoted context omitted.
> ...and dangerously untethered the stock market is from reality. "Disconnected from historical valuation norms" is a more sensible statement. The idea that the stock market is "detached from reality" is dangerous too because the stock market is...reality. People make and lose real money in it every day. There are good arguments that the historical valuation norms are reasonable and deviation from them is "dangerous"…
For certain values of "reality". It doesn't take a financial analysis to tell you that it is bananas that Tesla (~1.3T) is worth more than four times as much as Toyota (280B), and yet.
You and I and a million other people might run away from Tesla's valuation but that doesn't mean that the market must.
I think it's very obvious that the historical norms that governed and explained pricing in the stock market no longer apply, for better or worse. Between the massive manipulation of the markets by central banks to the rise of the retail investor (and social media, meme stocks, etc.), there are a lot of factors in play that weren't a thing 30 years ago.