Is this the most amazing picture of all time?

[cancel2 2022]

I know that I understand the analogy. It's a thought experiment about how something can appear to be one thing and then another depending on the point of view of the observer at the same time. It's corrolary is Heisenbergs uncertainty principle.

It's a lot more than that, it was a thought experiment to show up the limitations of the Copenhagen interpretation when scaled up to the real world. Heisenberg's uncertainty principle being a part of that interpretation.

1. A system is completely described by a wave function , representing the state of the system, which grows gradually with time but, upon measurement, collapses suddenly to its original size.
2. The description of nature is essentially probabilistic, with the probability of an event related to the square of the amplitude of the wave function. (The Born rule, after Max Born)
3. It is not possible to know the value of all the properties of the system at the same time; those properties that are not known exactly must be described by probabilities. (Heisenberg's uncertainty principle)
4. Matter exhibits a wave–particle duality. An experiment can show the particle-like properties of matter, or the wave-like properties; in some experiments both of these complementary viewpoints must be invoked to explain the results, according to the complementarity principle of Niels Bohr.
5. Measuring devices are essentially classical devices, and measure only classical properties such as position and momentum.
6. The quantum mechanical description of large systems will closely approximate the classical description. (This is the correspondence principle of Bohr and Heisenberg.)