Carlo Rovelli’s Radical Perspective on Reality

Sitting outside a Catholic church on the French Riviera, Carlo Rovelli jutted his head forward and backward, imitating a pigeon trotting by. Pigeons bob their heads, he told me, not only to stabilize their vision but also to gauge distances to objects — compensating for their limited binocular vision. “It’s all perspectival,” he said. A theoretical physicist affiliated with Aix-Marseille…

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