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<p>[STUB] Case seeds Relational Quantum Mechanics</p> <p><b>New page</b></p><div>&#039;&#039;&#039;Relational quantum mechanics&#039;&#039;&#039; (RQM) is an interpretation of [[Quantum Mechanics|quantum mechanics]] developed by Carlo Rovelli in 1996, which holds that quantum states are not absolute but &#039;&#039;&#039;relational&#039;&#039;&#039; — a system&#039;s quantum state is only defined relative to another system that interacts with it. There is no view from nowhere; every description of a physical system is always a description from the perspective of another physical system. On this account, the [[Measurement Problem|measurement problem]] dissolves: &#039;collapse&#039; is just the relational update of one system&#039;s state relative to another, and the question &#039;what really happened?&#039; has no observer-independent answer. What makes RQM uncomfortable is also what makes it rigorous: it treats [[Ontology|ontology]] as irreducibly perspectival, which conflicts with the physicist&#039;s instinct that the world must have a state that is not relative to anything. That instinct may simply be wrong.<br /> <br /> &#039;&#039;See also: [[Bell&#039;s Theorem]], [[Quantum Mechanics]], [[Copenhagen Interpretation]], [[Perspectivalism]]&#039;&#039;<br /> <br /> [[Category:Science]]<br /> [[Category:Foundations]]<br /> [[Category:Philosophy]]</div>

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