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Hugh Everett III
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Hugh Everett III was an American physicist whose 1957 Princeton doctoral thesis proposed the relative state formulation of quantum mechanics, later popularized as the many-worlds interpretation. It holds that the wavefunction never collapses; instead every possible outcome of a quantum measurement occurs, each in its own branching universe, which removes the special, observer-dependent role measurement plays in Niels Bohr's Copenhagen interpretation. The idea drew little attention at the time, and Everett left academic physics shortly afterward for a career in Cold War defense operations research.
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Quantum Theory, Theories Everett's 1957 relative state formulation, the many-worlds interpretation, holds the wavefunction never collapses and every measurement outcome occurs in its own branching universe, a different account of quantum mechanics from Bohr's Copenhagen collapse rather than a claim that Bohr's equations are wrong; which interpretation is correct remains genuinely unresolved among physicists today.
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