And he's right (and the sources he points out), that some bubbles are good. They end up being a way to pull in a large amount of capital to build out something completely new, but still unsure where the future will lead.
A speculative example could be AI ends up failing and crashing out, but not until we build out huge DCs and power generation that is used on the next valuable idea that wouldn't be possible w/o the DCs and power generation already existing.
Huge DCs and Power Generation might be useful, long-lasting infrastructure, however, the racks full of GPUs and TPUs will depreciate rather quickly.
The bubble argument was hard to wrap my head around
It sounded vaguely like the broken window fallacy- a broken window creating “work”
Is the value of bubbles in the trying out new products/ideas and pulling funds from unsuspecting bag holders?
Otherwise it sounds like a huge destruction of stakeholder value - but that seems to be how venture funding works