You literally repeated McCowan's suggestion back to him. ("Climate scientists say climate change is happening -> would be wise to take their word" from him, then "open heart surgery -> want a trained doctor" from you.)

And then said "Get it yet?"

Not "Yes, that's exactly what I'm saying we should do!" No, "Get it yet?"

Since I can't read your mind, I can't tell if that's rude or stupid, but it sure isn't good.

(You also brushed off the entire difficult issue of how to view democracy under such a framework, given the very cogent point that most of us are ignorant of most things.)