It is no secret that one of my favorite shows online is PBS's Spacetime. They found a unique combination of rigor and accessibility, spicing the whole thing up with a certain 'coolness' factor that makes the show very enjoyable to watch. Only very rarely do they seem to make mistakes—a surprising achievement given the complexity of the subjects explored.
In this context, many of you brought to my attention a very recent episode of Spacetime—see video insert below—in which they discuss the role of consciousness in quantum physics. This is a topic very close to my heart, about which I have written extensively (for instance, on Scientific American). But some of you were quite critical, thinking that Spacetime weren't fair in their portrayal of the relationship between consciousness and quantum mechanics.
Granted, Spacetime were critical of the idea that quantum mechanics—through the notion that consciousness causes wave function collapse—somehow permits us to "manifest" our preferred reality by thinking it into existence. But insofar as the consciousness in question is understood to be our personal, egoic, introspectively accessible consciousness, neither do I think this is the case. Perhaps our subliminal mental attitudes—at a deeper, even transpersonal level, below the threshold of metacognitive introspection—do influence things in some yet-unsuspected way, but that doesn't entail or imply that we can personally and deliberately choose, "manifest" or "attract" things; otherwise there would be no consensus about our inhabiting the same world. Therefore, I don't think the skepticism shown by the Spacetime crew is unjustified or inappropriate.
Neither do I naively think that quantum mechanics hasn't been the target of abuse by non-physicists. Although I defend—in an upcoming paper in the Journal of Near-Death Studies—some statements about quantum mechanics made by non-experts in the fields of parapsychology and integrative medicine, I do acknowledge that extensive abuse has happened; also in those fields. For instance, not long ago, in my role as consulting publisher at Iff Books, I've had to review a manuscript that not only betrayed extraordinary ignorance of what quantum mechanics is or says, but also displayed an atrociously confident tone suggesting the contrary. It literally made me feel sick in my stomach. So abuse does happen and must be countered. That Spacetime decided to do this is, in principle, perfectly okay with me; even though I reserve judgment about some of the specific books they chose to name explicitly as instances of abuse.
As a matter of fact, I was very positively surprised by a number of statements made in the episode that not only admitted to a possible link between quantum physics and consciousness (the latter meant here in a transpersonal, naturalistic sense), but also persuasively explained the basic rationale for postulating such a link in the first place.
Indeed, Spacetime were clear (at just after the 12-minute mark) that their criticisms don't apply to what they called a "global consciousness." Significantly, they've also spent most of the episode thoroughly explaining 'von Neumann chains' and the 'Wigner's friend' thought experiment: two of the reasons to suspect a link between consciousness and quantum mechanics. Even more importantly, they did not attempt to refute the rationale behind either notion. In a strong sense, thus, they've actually made a persuasive case for the role of consciousness. At the 12:24-minute mark, they've even explicitly stated that "conscious observation may play a role" in the transition from quantum states to classical reality, although that role isn't compatible with the notion that we can personally and deliberately choose our own reality.
The only point about which I am mildly critical of the episode is this: Spacetime came through too strongly in favor of a completely objective external reality. Recent evidence shows that, at some level, this isn't true. That said, and as Spacetime illustrates with their modified version of the 'Wigner's friend' thought experiment at the 11:05-minute mark, we clearly seem to inhabit the same world, consistently experienced by each of us. So it cannot be the case that we are each creating our own reality independently of everybody else; at least not at all levels.
I also regret a bit that they too strongly associate the link between consciousness and quantum physics with mysticism, as opposed to a natural process. Consciousness, after all, is natural; it's an undeniable aspect of nature, the prime datum of existence. Having said that, insofar as what they mean by 'mysticism' is related to the notion that the executive ego can wish a preferred reality into existence, I am okay even with that.
What we have to guard against is the tempting but almost certainly false notion that, by granting a fundamental role to consciousness in the fabric of reality, we are granting our personal, individual, introspectively accessible consciousness magical powers. This is not, for instance, what analytic idealism entails or implies. When Wigner's characterized the role of consciousness in physics as a "solipsistic view," he was denying precisely this, not the hypothesis of a universal consciousness underlying physics.
All things considered, I salute Spacetime on another beautiful and fairly well balanced episode. May they keep on coming!
