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Observers Disturb What They Measure | Understanding the Quantum World



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Consider what life would be like if quantum effects held at our everyday scale. For instance, there would be no trouble sitting in three chairs at once! Learn what happens when a particle in such a mixed state is forced by measurement to assume a definite position—a situation known as wave function collapse. This leads to the important quantum principle that observers disturb what they measure.
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11 thoughts on “Observers Disturb What They Measure | Understanding the Quantum World
  1. The act of measurement on the system cause the collapse of the wave function. Anything is possible, only through set probabilities that are pre-determined by the system.

  2. there is only one truly observer of the observable universe. life is fundamentally quantum at its basics even at everyday scale — life is a game by quantum rules.. life (as a whole single living system) is the truly observer of the universe.

  3. The example of disturbing objects by recording a video doesn’t seem right. The light is already there. Adding a recording device does not disturb the object any further.
    Maybe you need to restate it as “we cannot observe something with (edit- Without ) a disturbance to the object.” And, of course, this is not Disturbance in everyday usage. If you video a plant outside , you could call the sunlight the disturbance, but it is also vital to the plant’s survival.

  4. Quantum is directly from Latin. “Quantized” has the same root, but you had it backwards. “Quantized” is an English verb form of the Latin noun “Quantum” , not vice versa. I know, I’m nitpicking

  5. The reality of the quantum world seems to render classical "common sense" arguments for God as naive.

    If our own universe behaves in such an unintuitive way why do we think that we can simply apply our human logic to such metaphysical questions and expect them to correspond to whatever reality lies out there?

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