Well, it will only take as long as for web 1.0 and web 2.0 to find legit use cases.
What's that you say? Those technologies have legit cases from almost day 1, it just took the technology a bit to catch up?
That's just like crypto tech.
Ah, it isn't, you say? Blockchain has the tech but the list of legit and popular use cases only it can solve is almost 0 and we haven't really found new ones in almost 14 years?
