More cognitive bias.
A cognitive bias is a pattern of deviation in judgment, whereby inferences about other people and situations may be drawn in an illogical fashion. Individuals create their own "subjective social reality" from their perception of the input. An individual's construction of social reality, not the objective input, may dictate their behaviour in the social world. Thus, cognitive biases may sometimes lead to perceptual distortion, inaccurate judgment, illogical interpretation, or what is broadly called irrationality.
The OED suggests that font of knowledge is now the more common form.
One of us went to university for free on his knowledge of the English language, and you didn't, naif.
The three clear facts I posted above stand, and your "Internet rebuttal" does not. Making stuff up and injecting your own opinion is not a rebuttal.
I didn't make up anything, it was simply stated in my own words.
I've identified you as someone to whom facts don't matter, so I've decided to just play you along.