The moment it was created honestly. Web 2.0 was buzz, but it was also a term invented AFTER the innovation.

Web 3.0 is an attempt to scam people before anything was even there.

I remember a friend asked me to look into it from a technical point of view, he wanted to invest in some web 3 stuff. I told him that I wasn't interested but I'll do it if he still wants.

Asked around online "what is web 3?" got different answers, mostly about NFTs but also about gaming with blockchain, and immediately realised that everyone thought it was what THEY were into. No formal definition.

Reported back and my friend was already uninterested meaning I wasted my time.