That's what somebody told me about crypto in 2015, or for that matter about Google in 2009 and computer science in 2002.
There's always another train, right up until the point where everybody assumes that there'll always be another train and world domination is assured. At that point, it's time to hop on another track.
Crypto is the internet in 1996, and you are telling me I missed the train because SUN Microsystems is going to be the first trillion dollar company.
.. eventually going bust and being bought by Oracle?
I think that's the point. Existing cryptocurrencies are very likely to get eclipsed by new competitors that actually solve the problems people face with them. And if you want to have a big impact on humanity, solving those problems is a fruitful area. The financial system that'll pay for our retirements likely hasn't been invented yet.
Crypto is not the internet in 1996. It's a scam. The internet never was. "Crypto is the early internet" is such a lame over-repeated phrase by crypto enthusiasts. Doesn't make it correct in any way.