That is like telling others who experience natural disasters to wait until it happens and then ask themselves "How much damage will it bring" and then someone else tells them that it costed them everything.

Anyone who has lived through the dotcom bubble knows that this AI mania is a obvious bubble and the whole point is you have to prepare before it eventually pops, not after someone tells you that it is too late when it pops.

Except not all (market) bubbles pop. Sometimes they slowly deflate, and sometimes they stabilize ("soft landing").