The response to Einstein’s thought experiment from the rest of the conference was muted incomprehension. Bohr, to his credit, admitted as much. “I feel myself in a very difficult position because I don’t understand what precisely is the point which Einstein wants to [make],” he said. “No doubt it is my fault.” Einstein’s simple thought experiment offered a devastating critique of the Copenhagen position, but its simplicity may have paradoxically been a barrier to understanding: Einstein’s presentation of it was quite brief and may have given the impression that he was confused about the nature
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