The problem in this question is not that quantum objects exist, but what defines the process of observation. Suppose a particle A(pA) is in superposition of states. To measure the position we employ detector A (dA). Before looking, the system is in a superposition of (dA)x(pA). If the universal wave function is U, then before observation, the state of the universe in which I see one result is
(dA_1)x(pA_1)xU, and in other its (dA_2)x(pA_2)xU and so on...
This really puts the question back at what does the process of observation mean? The computational theory of mind doesn't give an answer to it as Searle's chinese room experiment shows us. Read up on that. You will understand later that this human operator, doesn't really understand English but he is just an English Room in the Chinese room. So what exactly does observation mean?
The best candidate is consciousness. Consciousness is unlike anything materialistic out there. You can devise an intelligent physicist without him having an inner life. But then he would not understand measurement, he will simply utter words and write papers, that mean that he found the electron obeying wave interference. The intelligent unconscious physicist is just then, a system entangled with the measurement.
Therefore, we must really ask what does understanding mean, because anything else is just then a superposition with no reason to collapse into concrete reality.
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