As a child and adolescent I always imagined that something would click when I became an adult and I would become good at things and understand the world. That never happened, and then I realised it never happens for anyone. We're all just large children walking around figuring things out. Some of us figure things out faster, some of us stop trying to figure things out, but we're all just as clueless in the grand scheme of things. It's a miracle and a testament to our perseverance and ambition that things still work as well as they do.

On the other hand, I've contacted several of my heroes (not been able to meet as many of them in person) and that's always been an exhilerating, formative experience. I strongly recommend it if you can think of a good reason. (I have a list of heroes I have yet to reach out to because I haven't yet encountered an interesting enough problem to offer them. Several of them unfortunately have an actuarial deadline not too far into the future.)

I once worked with someone well renowned in my circles who gave talks, ran a blog, was cited/edited other peoples books.

His code did not match the hype, to say the least. His SDLC even less so.

There is probably an ego associated with being renowned that doesn't align with team-based work. He likened basic things like code reviews or PRs to being brought before The Hague and that the rest of the team was a bunch of bureaucrats.

everyone is guessing

some are just a bit better at guessing