The more profficient you are on a subject of debate, the clearer you see the truth. I happen to come across people who have their own version of the truth, on areas I am extremely experienced to have an educated opinion.
For example, a friend of mine who started wow recently (while I play from eu beta) has the tendency to blame his teamates constantly for his PVP failures and yet praise himself for his PVP achievements. Knowing himself first hand and the game a lot better than him we can get involved into long discussions trying to make it apparent to him that the truth is the other way around but he still argues against my various and many arguments.
Or a typical post your ignorant poster will make on forums is that Alliance or Horde sucks on battlegrounds, depending on the faction of the distorted vision the poster has while there have been statistics which make the result of the games more or less even AND while the only common factor in his unlucky experience is himself.
The question could expand to more grey areas like politics or religion. While usually there the truth is somewhere in the middle of each sides arguments, a sensible person can see a side has stronger arguments.
My question, what I try to understand, is why do those people cant see the reality?
Is it a lack of experience?
Is it a lack of intelligent sentiment to make reasonable conclusions?
Is it a big ego as in lets blame anyone else?
What else can it be?
And apologies if i am stereotyping, I am on a long streak awake and tired, as a secondary question do those people with their own versions of the truth finally see the light? ever?