I dont mind people being wrong, in fact i love the fact that people are trying to find answers at all. What i mind is the absolute certainty people tend to have that they are correct, to the point of being unable to even begin to consider other answers at all.

What really gets me is just how pervasive this cock sure confirmation bias is in even the most well meaning of people. In recent years it is so common it is crippling and causes turmoil in even casual relationships for anything remotely polarizing.