“The quantum theory of parallel universes is not the problem, it is the solution.”

—  David Deutsch, book The Fabric of Reality

Source: The Fabric of Reality (1997), Ch. 2
Context: The quantum theory of parallel universes is not the problem, it is the solution. It is not some troublesome, optional interpretation emerging from arcane theoretical considerations. It is the explanation—the only one that is tenable—of a remarkable and counter-intuitive reality.

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David Deutsch20
British physicist 1953

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