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The biggest problem with Copenhagen is that it doesn't say if there is a physical collapse or that there isn't one. Instead think of it as a rule of thumb; if
by akvadrako 10y ago
The biggest problem with Copenhagen is that it doesn't say if there is a physical collapse or that there isn't one. Instead think of it as a rule of thumb; if you apply the quantum/classical cut in the appropriate spot for your experiment, it will give the right answer. But it gives no guidance where that spot is or what physically is happening.
- justinpombrio 10y agoFrom the many worlds perspective, it's actually quite clear where the Copenhagen "collapse" occurs: it's when something enters a superposition with Earth.
- akvadrako 10y agoIt is true that WMI gives clear guidance on the subjective collapse, but there is nothing special about Earth.