Shorting a security means risking exponential losses if the stock you're shorting continues to increase in value. As the saying goes: the market can stay irrational longer than you can stay solvent.
If so, keep in mind that it's contingent advice. The question was how to profit from predicting an AI bubble popping [or something along those lines]. The answer is shorting Nvideo (assuming your prediction also includes a timeline).
It's always a way to lose a massive amount of money if you're wrong, so the advice is also contingent on confidence level.
I'm not trying to be facetious here, but I think it's very naive to assume you get to "profit from predicting an AI bubble." In theory, maybe, but in reality you will lose money. Shorting is never the solution... it's a very niche tool for very niche group of investors.
When retail guys talk shorting, it's very hard to take them seriously.
Retail guys generally think they can time the market based on vibes, rather than specific insider-y info. But if you (retail investor or not) have that specific insider-y info--something resulting in justified, high probability, time-bounded knowledge about a future change, shorting can be the rational decision.
Would love to hear how that could work.