alt Hacker NewsHuman "reality checker" systems are analogous to a discriminator in a generative adversarial network, but strongly informed by emotion.
Psychology tells us that regardless of how "emotional" we are, our sense of truth/falsehood goes first through an emotional circuit, which is informed by underlying beliefs.
If someone states something you strongly disagree with, your first internal response will be emotional; then your thoughts will pick it up from there.
Popper's definition of Science™ is an algorithm for establishing and testing truth-statements against reality. An educated man would still be susceptible to the weakness you describe, but his education ideally has informed and practiced him in the weaknesses and folley of unchecked emotionalism. Man is emotionally driven, but we can hope for a rationally and logically informed drive-gating system.