Imagine shorting Alphabet stock now , just before the AI bubble bursts, what an opportunity of a lifetime.

Shorting is a very different thing from buying a stock and living through a drawdown. You can bleed money fast and if you don't have options protecting your trade, your loss potential is unlimited. Once you pay for the insurance through options, the profits aren't that attractive unless you can see the future and predict exactly when the stocks will go down.

Go ahead.

Good luck timing it. "The market can remain irrational longer than you can remain solvent."

There isn't always a mechanism that will translate being-right about some fundamental fact into making-money from it.

P.S. It isn't trivially "solved" by someone setting up a gambling scheme either. Many people who are right will still lose because they didn't also guess when other people would start to agree with the conclusion. Plus there's the time-value of money for things which take longer to play out.

Isn't Oracle more likely to collapse first? However, timing these things is next to impossible, so good luck if you attempt shorting them.

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