[FourthProtocol]

>> You’re not an expert in your field, otherwise you wouldn’t be publishing in a blog, but writing papers and giving interviews.

>So there is no need for teachers and textbook authors, because they don't advance state of the art?

This. I have a web site that in places you might call a blog. It's got a section for work stuff, some photos, hobbies, and random pages like explaining how to drive off-road. Those off-road pages (specifically this single page - https://www.wittenburg.co.uk/offroading/Concepts/Gearing.htm...) gets more hits than all the other pages combined. I wrote it in 1998.

[hef19898]

I'll be damned, back when I stared off roading like six years ago, I did read that page!