One may easily be educated and still believe incorrect things. Happens all the time. I would imagine he has the diploma on the wall to show his education. That he seems to have missed critical thinking skills--and I agree that encouraging him to provide evidence is the way to go about it--does not detract from any work he may have done which is not evident from two sentences' description.
Originally Posted by DrRocket
"Now everyone was giving her that kind of look UFOlogists get when they suddenly say, 'Hey, if you shade your eyes you can see it is just a flock of geese after all.'"
"You can't erase icing."
"I can't believe it doesn't work! I found it on the internet, man!"