Does Quantum Mechanics promote us ?
J.A Wheeler, a famous American physicist proposed the idea of participator. He argued that quantum mechanics promotes observer to participator. It joins participator with system in a "wholeness" (as Niels Bohr called it) or "non-separability" quite foreign to classical physics.
Note : The insertion of a position-measuring device prevents the installation of a velocity- measuring device, and vice versa.
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