The original Wigner's-Friend scenarios

Jay Lawrence

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arXiv · 2509.13470

The original Wigner's-Friend scenarios

Jay Lawrence

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Abstract

We describe the Wigner's-Friend scenario according to Wigner, then a similar but earlier version according to Everett. Wigner and Everett provide different resolutions of essentially the same paradox. Decoherence theory provides a third resolution. Despite different interpretations (or their absence), these three stories fit together to form a consistent picture without a paradox.

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Jay Lawrence. 2025-09-16. The original Wigner's-Friend scenarios. https://arxiv.org/abs/2509.13470

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