According to LessWrong contributor alseph, there's a cruel paradox baked into rationality: false beliefs sometimes produce better outcomes than truth. Imagine a society where everyone genuinely believes they'll be eternally punished for harming others. They'll cooperate perfectly—not because the punishment is real, but because they believe it is. A rationalist understands why it works, but can't make themselves actually believe it enough to benefit. The belief has to be real, and rationality gets in the way. The same irony shows up everywhere. Soldiers who blindly trust orders outperform informed soldiers who debate strategy. Overconfidence makes you more successful than accurate self-assessment. Even in AI development, some argue that optimistic beliefs about outcomes might actually produce better results than pessimism. This leaves rationalists in a bind: we understand the problem better than anyone, but we're incapable of solving it. We're locked out of the cooperative equilibria that faith and false beliefs enable. And there may be no way out that's actually rational.

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