Jeremy Grantham on the everything bubble and "burst of euphoria"

It's the burst of euphoria that typically brings these things end and we are seeing it all around us today.

[...]

When you have reached this level of obvious super enthusiasm, the bubble has always, without exception, broken in the next few months, not a few years.  It's always.  You can't maintain this level of near ecstasy.  It can't be done because you've put in your last dollar.  You are all in.  What are you supposed to do at that point?  You can't borrow any more money.  You can't take any more risk.

~ Jeremy Grantham, "Why Grantham Says the Next Crash Will Rival 1929, 2000," Bloomberg interview, January 22, 2021, 8:00 and 10:00 mark