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Line 10: Quantum indeterminacy is intrinsically involved with measurement which itself involves intervention. Measurement in quantum physics has proved to be unexpectedly subtle. How the might the system being measured be affected by the measuring process? This question concerned [[Werner Heisenberg]]. ==According to Heisenberg, it is "theory which decides what we can ~~observer~~observe"== Many years after the fact, Heisenberg recalled how when he was developing the uncertainty principle that [[Albert Einstein]] had emphasized that it is theory that decides what we can observe [Heisenberg 1971]:

Quantum indeterminacy: Difference between revisions