Seinfeld gets it
/Jerry Seinfeld explains with perfect clarity why I'm constantly standing on stages, telling stories, delivering talks, and performing standup.
I wouldn't go so far as to call the writing and publishing of books the "definition of hell," but he's correct about the lack of immediate, specific feedback from your readers.
When I stand on a stage and perform, I know how I did immediately, in real time, and that is a beautiful thing.