Chips are unlike cars and there is very little wear and tear. If depreciation of Chips and subsequent losses is your criteria of how this bubble will burst, you may be in for a rude awakening. With Moor's law already finished, the Chips can be used for at least a decade or more even with lower efficiency and more power usage.

The failure rate of GPUs is quite high.

https://www.tomshardware.com/pc-components/gpus/datacenter-g...