> > Bubbles don't pop the moment critics start calling them bubbles, they tend to have a couple more years in them

> The dot com bubble took about 9 months, iirc

It took 39 months and 5 days from Fed Chair Alan Greenspan’s “irrational exuberance" description (1996-12-05) until the bubble popped (NASDAQ market peak on 2000-03-10). Greenspan wasn’t the first critic, either, though he was obviously a very high profile one.