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What this all comes down to is addressing the gap between superposition and a definite outcome. Superposition is about the uncertainty of an object-hidden condition. The quality of the system is important to the quantum state to interfere, which gives results that in order a statistical mixture can't. So the issue is how to connect quantum evolution with definite outcomes recorded in individual measurement. Shortening of Canada is a good example of linking up microscopic event to a macroscopic consequence of stopping. An experiment doesn't establish whether a real animal is both alive and dead until a person observes. It exposes questions on a defined quantum rule specifically to a detector.