@snood,
I'm not at all confident he'll read it, but he might. And he ought to. But he has a point. We all suffer confirmation bias, though to what degree we suffer it is not the same person to person. I remember once reading an early medical science anecdote where Galen and Harvey differed on how blood was moved through the body, Harvey forwarding a newish idea that the heart was responsible. A third person stated, "I would rather be wrong with Galen than right with Harvey".
One recurring indication I have of my failing here is viewing a photograph of some individual and where I initially mis-read the caption, taking him for a liberal when it's a conservative or vice versa, I will respond to that face
negatively or positively, and then that "perception" will change when I read the caption properly.
I should add here that this is exactly why study and gathering of information is so important.