One of the challenges here is that a lot of folks simply weren’t around then and haven’t seen what happens when everything implodes overnight. Those that have experienced it know what that looks like and know it will happen again.
Whereas this is a very weird bubble where it creates big pumps in some equity prices but apart from a tiny number of people who are directly involved in AI research etc. it's not created any jobs, in fact by creating uncertainty it's probably caused fewer jobs to be created.
What that means for labour market dynamics when it pops I really don't know
The question is, is it a big bang or a slow release?
The housing bubble that peaked in 2006 was raised as an issue at least as early as 2000 and became a big topic of conversation in mid-to-late 2002, which is comparable to if we had started talking about an AI bubble roughly simultaneously with the release of GPT-3 and it had become a topic of wide concern shortly after the release of GPT-3.5.
So, in short, not only “this long”, but much longer.
In fact "pure" bubbles where the focus item is of literally no value (tulips, NFTs) are quite rare. Much more common are the bubbles based on an actual real transformative innovation (canals, railways, radio, internet, LLMs).
Railways did absolutely transform how travel worked in the UK, while simultaneously almost everyone who invested in them lost their shirts