The Reformation enabled the Enlightenment not because its doctrine was inherently progressive—early Protestantism was often fundamentalist—but because it broke the Catholic Church's intellectual monopoly. This fracture created a marketplace of ideas where different philosophies could compete, and forced societies to find ways to coexist with disagreement.

According to evolutionary psychologists, our capacity for reason didn't develop to be a dispassionate tool for finding truth. Instead, it evolved as a social mechanism to justify our positions and persuade others. This explains why factual evidence often fails to change minds and can even reinforce existing beliefs.

True scientific progress comes from being proven wrong. When an experiment falsifies a prediction, it definitively rules out a potential model of reality, thereby advancing knowledge. This mindset encourages researchers to embrace incorrect hypotheses as learning opportunities rather than failures, getting them closer to understanding the world.

The strength of scientific progress comes from 'individual humility'—the constant process of questioning assumptions and actively searching for errors. This embrace of being wrong, or doubting one's own work, is not a weakness but a superpower that leads to breakthroughs.

No scientific theory is absolute truth; each is a model based on assumptions it cannot prove. A truly great theory, like Einstein's, not only explains phenomena but also provides the tools to discover its own limitations. For general relativity and quantum mechanics, this limit is the Planck scale, where the concept of spacetime becomes meaningless, proving its own incompleteness.

The current era of tribal, narrative-driven media mirrors the pre-Enlightenment period of vicious religious wars fueled by moral certainty. The historical Enlightenment arose because society grew exhausted by this violence, suggesting that a return to reason and impartiality may only follow a similar period of societal burnout.

Skepticism isn't just doubting religion; it's recognizing that certain human knowledge is impossible in any domain, including science and ethics. This forces us to rely on a form of faith or hope to make decisions and live, as reason alone is insufficient for life's biggest questions.

The foundation of 80 years of global prosperity under Western influence wasn't just capitalism, but a core belief: since truth is advantageous but hard to find, society must protect individual sovereignty and free inquiry. This allows for innovation and progress by letting people be free to explore and even be wrong.

The Enlightenment offered a nuanced view of human nature, rejecting both the religious doctrine of inherent sinfulness and Rousseau's idea of a pure 'noble savage' corrupted by society. Instead, thinkers like Adam Smith proposed that humans are fallible but can be improved and socialized through societal living, a foundational concept for modern liberalism.