Our perception of sensing then reacting is an illusion. The brain constantly predicts the next moment based on past experiences, preparing actions before sensory information fully arrives. This predictive process is far more efficient than constantly reacting to the world from scratch, meaning we act first, then sense.

Shopping decisions are often a battle between brain systems. The primal limbic system, governing emotion, reacts instantly to sensory cues like a sugary display. This happens long before the rational cerebral cortex can process thoughts like 'budget' or 'health,' explaining why willpower often fails against our own biology in the aisles.

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.

Humans crave control. When faced with uncertainty, the brain compensates by creating narratives and seeing patterns where none exist. This explains why a conspiracy theory about a planned event can feel more comforting than a random, chaotic one—the former offers an illusion of understandable order.

The brain doesn't strive for objective, verbatim recall. Instead, it constantly updates and modifies memories, infusing them with emotional context and takeaways. This process isn't a bug; its purpose is to create useful models to guide future decisions and ensure survival.

With 10x more neurons going to the eye than from it, the brain actively predicts reality and uses sensory input primarily to correct errors. This explains phantom sensations, like feeling a stair that isn't there, where the brain's simulation briefly overrides sensory fact.

People are more effective at deceiving others about their true motivations when they first deceive themselves. Genuinely believing your own pro-social justification for a self-interested act makes the act more compelling and convincing to others.

We often assume our thoughts cause our feelings. However, the body frequently experiences a physical state first (e.g., anxiety from adrenaline), and the conscious mind then creates a plausible narrative to explain that feeling. This means the "reason" you feel anxious or unmotivated may be a story, not the root physical cause.

Our sense of self isn't an innate property but an emergent phenomenon formed from the interaction between our internal consciousness and the external language of our community (the "supermind"). This implies our identity is primarily shaped not by DNA or our individual brain, but by the collective minds and ideas we are immersed in.