The Dot.com bubble was a stock market collapse. The AI bubble is a potential Leverage/Debt crisis that involves all the major companies backstopping each other's debt (circular financing), bank loans, insurance (CDS), corporate bonds, private debt, and estimated 1.5 Trillion debt held "off the books" to make the whole system look solvent, when it's not.

https://youtu.be/5p1Xi9KEUiE