This is one of those arguments that is so vacuous you can apply it to anything and always be right.

> "There's no way you'll hurt yourself walking to the living room"

> "Read history: people always think everything is fine ... until it isn't."

And people are right most of the time. For every actual bubble, there are easily a dozen "bubbles" that aren't in fact bubbles.

Nasdaq is 5.4x higher now than peak dotcom.

So just buy the dip if it actually crashes.

> people always think everything is fine ... until it isn't

History is also replete with people constantly predicting collapses that don't come. Timing the market is very hard with numbers, it's total nonsense if one is just going off vibes.