Well, it's a pretty concrete tech stack these days even if the original vision didn't take off. I actually use these technologies in my day job (and have been

Well, it's a pretty concrete tech stack these days even if the original vision didn't take off. I actually use these technologies in my day job (and have been for several years), so it's not just a wikipedia look-up for me. Maybe that's why I think of it in more concrete terms.