My money is on a 10-20% pullback within a year. The valuations (besides palantir and tesla) aren't really that crazy. Nvidia is producing real stuff and real people are using these so called scams because they find them helpful, for example.

Now, as for the possibility of the "big one". I think there's a 25%+ chance of that in the next 2-5 years, likely bigger than anything before. But it won't be because of a scam.