We are well aware by now of the observer problem in quantum mechanics. Human consciousness appears to play a key wrong in the results of quantum experiments. However, the observer problem reaches beyond just quantum mechanics, argues Edward Frenkel. In the episode The Path to the Black Lodge of David Lynch’s iconic series Twin Peaks, Annie (played by Heather Graham) recites to Dale Cooper (Kyle MacLachlan) a famous quote by the great German physicist Werner Heisenberg, “What we observe is not reality itself but reality exposed to our method of questioning.”This quote elegantly encapsulates what is often referred to as “observer-dependence” in quantum mechanics: Depending on how we set up an experiment, quantum reality will expose itself in various ways, with different experimental setups revealing different, s…
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