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A Strange Quantum Theorem Has Killed Einstein’s Reality

8.11.2026
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What happens to the physical world the moment you stop looking at it?

In this piece from 6 November 2026, Quanta Magazine pauses on a question that bothered Albert Einstein until his death: does the moon exist when no one is looking at it? Babies learn object permanence early, assuming a toy stays put when no one is watching. But quantum physics disagrees. A modern mathematical theorem has finally forced physicists into an impossible corner, killing the idea of an objective physical world. The resulting dilemma is quiet but unsettling: if the math proves common-sense reality is an illusion, what exactly is left?

A history of the century-long physics debate over whether objective reality exists independent of observation. The timeline moves from Albert Einstein's early thought experiments to the 2012 PBR theorem, detailing the mathematical proofs that limit the options of modern physicists. These discoveries force scientists to either accept a physical reality that defies common sense, or abandon the concept of objective reality entirely.

Read at source: Quanta Magazine

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