"Although I'm regarded as a dangerous radical by particle physicists for proposing that there may be loss of quantum coherence, I'm definitely a conservative compared to Roger. I take the positivist viewpoint that a is just a and that it is meaningless to ask whether it corresponds to reality. All that one can ask is that its predictions should be in agreement with observation. I think Roger is a Platonist at heart but he must answer for himself."
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Sources
Stephen Hawking, The Nature of Space and Time (2000) by Stephen W. Hawking and Roger Penrose, Ch. 1 : Classical Theory, p. 3.
https://en.wikiquote.org/wiki/Roger_Penrose
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Roger Penrose
englischer Mathematiker, theoretischer Physiker und Autor
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