Intelligence is often used as a tool to generate more sophisticated arguments for what one already believes. A higher IQ correlates with the ability to find reasons supporting your stance, not with an enhanced ability to genuinely consider opposing viewpoints.

We confuse our capacity for innovation with wisdom, but we are not wise by default. The same mind that conceives of evolution can rationalize slavery, the Holocaust, and cruelty to animals. Our psychology is masterful at justification, making our default state far from conscious or wise.

Citing philosopher Alex O'Connor, the human brain is not optimized for raw data but for narrative. By asking people to abandon myth and story—the things that feel most real—in favor of statistics, the rationalist movement is asking people to fight their own cognitive wiring.

Our cognitive wiring prefers making harmless errors (false positives, e.g., seeing a predator that isn't there) over fatal ones (false negatives). This "better safe than sorry" principle, as described by Michael Shermer, underlies our susceptibility to misinformation and snap judgments.

Most arguments aren't a search for objective truth but an attempt to justify a pre-existing emotional state. People feel a certain way first, then construct a logical narrative to support it. To persuade, address the underlying feeling, not just the stated facts.

Michael Shermer suggests that when people latch onto misinformation, it's less about the event's specifics and more a manifestation of a pre-existing tribal belief. The false story simply reinforces a general sentiment, like "I don't trust that group," making the specific facts irrelevant.

The human brain is not optimized for changing its mind based on new data, but for winning arguments. This evolutionary trait traps people in their existing frames of reference, preventing them from assessing reality objectively and finding effective solutions.

We operate with two belief modes. For our immediate lives, we demand factual truth. For abstract domains like mythology or ideology, we prioritize morally uplifting or dramatically compelling narratives over facts. The Enlightenment was a push to apply the first mode to everything.

Our desire for objective truth is not a pure intellectual quest, but a psychological need for security. We construct belief systems, religions, and philosophies to create a sense of order and predictability, quelling the anxiety that arises from a chaotic and uncertain universe.