DotCom peak market cap estimated (by many) in today's dollars puts it somewhere north of $4 trillion.
Crypto market cap (so far) has peaked at (and I'll be generous) $600 billion.
One of these is not like the other
See me when crypto goes north of $3 to $4 trillion and then we can start to talk.
Even then, let's not forget that the Nasdaq is a US-based market that at the time (20+ years ago at this point!) required you to literally call your broker to make trades. Crypto is a global 24/7 market that has extremely low friction in terms of entry and execution. Lastly there are far more humans on the planet today than there were 20+ years ago.
I predict that all said and done, crypto's peak market cap will far exceed the DotCom's peak market cap.