I can have sympathy with those who are ignorant. After all, we're all ignorant about many things, right? And someone who is smart but arrogant about it is understandable to. But it drives me crazy to find people who are arrogant about their ignorance. I will start today's tirade with a parable:
A man lives in a searing desert. The only water he has ever seen in his life bubbles out of small springs in the cliffs.
One day, a trade route is established through his land, and he begins to meet many strangers. One thing he hears about from them is swimming. He has never conceived of such a notion. Secretly, he is jealous that all of these people have experienced something he's missed out on. But he won't admit that, even to himself. Instead, he proclaims that what these people are saying is irrational superstition, and that there supposed experiences of swimming are just self-delusion.
He begins to ask these people, with a sense of smug superiority, just how one goes about this "swimming." One traveler describes breaststroke to him, another backstroke, another the crawl, another butterfly, and so on. At this point, he exclaims "Aha! This proves these people are talking nonsense. Although they claim 'swimming' exists, they can't even agree about how its done!" He takes the fact that there are many ways to swim as proof that there is no way to swim!
If you decided that no one could combine such arrogance and ignorance, you'd be wrong.