{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,4]],"date-time":"2025-12-04T01:29:47Z","timestamp":1764811787124,"version":"build-2065373602"},"reference-count":14,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2025,5,27]],"date-time":"2025-05-27T00:00:00Z","timestamp":1748304000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"PAPIIT","award":["IG100124"],"award-info":[{"award-number":["IG100124"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Entropy"],"abstract":"<jats:p>Two recent, prominent theorems\u2014the \u201cno-go theorem for observer-independent facts\u201d and the \u201cLocal Friendliness no-go theorem\u201d\u2014employ so-called extended Wigner\u2019s friend scenarios to try to impose novel, non-trivial constraints on the possible nature of physical reality. While the former is argued to entail that there can be no theory in which the results of Wigner and his friend can both be considered objective, the latter is said to place on reality stronger constraints than the Bell and Kochen\u2013Specker theorems. Here, I conduct a thorough analysis of these theorems and show that they suffer from a list of shortcomings that question their validity and limit their strength. I conclude that the \u201cno-go theorem for observer-independent facts\u201d and the \u201cLocal Friendliness no-go theorem\u201d fail to impose significant constraints on the nature of physical reality.<\/jats:p>","DOI":"10.3390\/e27060563","type":"journal-article","created":{"date-parts":[[2025,5,28]],"date-time":"2025-05-28T08:12:47Z","timestamp":1748419967000},"page":"563","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Reassessing the Strength of a Class of Wigner\u2019s Friend No-Go Theorems"],"prefix":"10.3390","volume":"27","author":[{"given":"Elias","family":"Okon","sequence":"first","affiliation":[{"name":"Instituto de Investigaciones Filos\u00f3ficas, Universidad Nacional Aut\u00f3noma de M\u00e9xico, Mexico City 04510, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2025,5,27]]},"reference":[{"key":"ref_1","unstructured":"Pusey, M. (2016, January 11\u201312). Is QBism 80% complete, or 20%?. Proceedings of the Information-Theoretic Interpretations of Quantum Mechanics Workshop, Western University, London, ON, Canada."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"130402","DOI":"10.1103\/PhysRevLett.126.130402","article-title":"Physics and metaphysics of Wigner\u2019s friends: Even performed premeasurements have no results","volume":"126","author":"Markiewicz","year":"2021","journal-title":"Phys. Rev. Lett."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"3711","DOI":"10.1038\/s41467-018-05739-8","article-title":"Quantum theory cannot consistently describe the use of itself","volume":"9","author":"Frauchiger","year":"2018","journal-title":"Nat. Commun."},{"key":"ref_4","doi-asserted-by":"crossref","unstructured":"Lazarovici, D., and Hubeert, M. (2019). How quantum mechanics can consistently describe the use of itself. Sci. 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Phys."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"785","DOI":"10.22331\/q-2022-08-24-785","article-title":"Events in quantum mechanics are maximally non-absolute","volume":"6","author":"Moreno","year":"2022","journal-title":"Quantum"}],"container-title":["Entropy"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1099-4300\/27\/6\/563\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,9]],"date-time":"2025-10-09T17:41:04Z","timestamp":1760031664000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1099-4300\/27\/6\/563"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,5,27]]},"references-count":14,"journal-issue":{"issue":"6","published-online":{"date-parts":[[2025,6]]}},"alternative-id":["e27060563"],"URL":"https:\/\/doi.org\/10.3390\/e27060563","relation":{},"ISSN":["1099-4300"],"issn-type":[{"type":"electronic","value":"1099-4300"}],"subject":[],"published":{"date-parts":[[2025,5,27]]}}}