We are gratified that Art Hobson likes our book, Quantum Enigma: Physics Encounters Consciousness. But he misinterprets our display of physics’ encounter with consciousness. What we claim for the encounter does not go beyond the quantum-theory-neutral experiments we describe. The outcomes of these experiments (“demonstrations” may be a better word since the outcomes are known) are completely undisputed. We invoke no quantum theory to establish physics’ encounter with consciousness. We make no speculations of our own, beyond what can be displayed for anyone to see. We do go on to discuss nine currently contending interpretations of quantum theory and note how each of them deals with physics’ encounter with consciousness.

Hobson insists that a measurement is made when, for example, a photon hits a photographic film (which is, presumably, in contact with the environment). But, is a measurement made when a photon hits a small, isolated piece of film?...

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