Anthropic is 5 years old, and was already widely use when it was 2years old. These companies get big faster, but still are pretty young ones

Youtube and Facebook are from social media era, before them Netscape and Google were a thing. There are just waves of digital mass consumption products and its not the social media era anymore. The adoption curve however feels the same for them all

I do agree, but I also wanna point out that back then you did not have to be a phd or a researcher to do something. You could do something in a weekend (something that people want) and then hope that you can INSANELY viral. Nowadays the small actors have it somehow worse in that respect, I feel like.