{{Short description|Theory in physics}} {{for|the concept of mutability in programming|immutable object}}
The principle of '''mutability''' is the notion that any physical property which appears to follow a conservation law may undergo some physical process that violates its conservation.<ref>{{citation| url=https://www.youtube.com/watch?v=0y4AMA8mhYA |archive-url=https://ghostarchive.org/varchive/youtube/20211212/0y4AMA8mhYA| archive-date=2021-12-12 |url-status=live| title=John Wheeler - Principle of mutability (Part 2) (89/130)| date=October 6, 2017}}{{cbignore}}</ref><ref>{{citation| title=From Relativity to Mutability| work=The Physicist’s Conception of Nature| doi=10.1007/978-94-010-2602-4_9| pages=202–247| author=John Archibald Wheeler| year=1973| isbn=978-94-010-2604-8}}</ref><ref>{{citation|title=General Relativity and John Archibald Wheeler|author=Richard A. Matzner|publisher=Springer Science & Business Media|year=2010|isbn=9789048137350|pages=34}}</ref> John Archibald Wheeler offered this speculative principle after Stephen Hawking predicted the evaporation of black holes which violates baryon number conservation.<ref>{{citation| title=John Archibald Wheeler: A Few Highlights of His Contributions to Physics| editor=Kip S. Thorne| date=October 28, 1985| work=Between Quantum and Cosmos|pages=9}}</ref>
==See also== * Philosophy of physics
==References== {{reference list}}
Category:Philosophy of physics Category:Theoretical physics Category:Conservation laws
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