I would say crypto is more a failure than a fad. If it had been successful, people would have continued to use it.

That's the thing. Every big thing has been misidentified as a fad.

But also you don't hear about that other 10 000 things that were called a fad and ended up being a fad.

Crypto might very well be a fad. At least only because of public misuse as an unregulated gambling market. It had potential to be great, but in my opinion, the in-between time of being a scammer's paradise has killed it for the near future.

There is pretty much no way "AI" is a fad. It won't replace everything, but integrating it into CAD tools, writing tools, and multimedia tools is pretty much inevitable.

For sure. If you're reading this and haven't messed around with an llm like chatgpt yet, do yourself a favor and ask it some questions or to perform some simple tasks. Like a search engine, using it is a skill you'll need to develop, and like anything you read on the internet you need to use due diligence, because it can be wrong. But as long you are aware of its strengths and faults, imo it's the probably the best research tool since search engines. You're doing yourself a disservice ignoring it if you think it's a fad