One of my favorite Youtube channels (Greg's Airplanes and Automobiles) has great videos about WWII airplanes and aeronautical technology, really digging into the weeds with original source material kind of stuff. But: they're just him reading a script he's written and showing still pictures and excerpts from pilot manuals etc. His content would make excellent written blog posts or even a book, but then nobody would read it. He has to turn what is fundamentally written material into videos in order to make any money off of his work because that's what works for most people. Just makes me sad.