No reader is truly objective either, including you ;-)
What about the things that were only described with squeaks amongst porpoises cavorting in the deep? What about the things that happened on the other side of the galaxy? We're predisposed against knowing anything about any of these categories of things.
(1) When I say "written" you can alternatively insert (for example) "talked about" or "filmed" or "addressed in any medium."
Edit to get rid of italics-incontinence.
I know I'm not perfect in those regards, but I try to at least avoid marching to the drumbeat of the two minute hates the politicians use to herd people.
(And if you think you are truly self-aware, you have not read Thinking Fast and Slow. You should.)