Quantum theory and evolutionary biology, so interpreted, together weave a remarkably consistent story. Quantum theory explains that measurements reveal no objective truths, just consequences for agents of their actions. Evolution tells us why—natural selection shapes the senses to reveal fitness consequences for agents of their actions. We are surprised that measurement and perception are so personal. We expected them to report objective and impersonal truths, albeit fallibly and in part. But when two pillars of science side with each other, and against our intuition, it’s time to reconsider
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