Robert Stalman
1.9K posts

Robert Stalman
@rstallie
Data | Analytics | Philosophy | Research Fellow at De-Kitschify College | Visiting Professor at the University of Unoptimized Being




@Philip_Goff Wanna know my main problem about panpsychism? It gives matter ‘intrinsic’ consciousness without explaining why those intrinsic properties should be conscious rather than anything else.



@Philip_Goff It’s not symmetrical, I think. Physicalists don’t posit intrinsic properties (only causal roles). Once you introduce intrinsic properties, you face a further question: why those intr. properties should have the specific character(phenomenal) you give them.






Truth is important.






The Penrose–Hameroff “Orch OR” theory of consciousness is one of those ideas that sits right at the edge of physics and philosophy, where things start to feel both exciting and a little uncomfortable. It was developed in the mid-1990s by Roger Penrose and Stuart Hameroff. Their starting point was a bold question: can human consciousness really be explained as just computation, like a very complex computer running in the brain? Penrose suspected the answer was no. He argued that human understanding, especially in mathematics, seems to go beyond strict computation. From that idea, the two proposed something unusual. Instead of neurons alone producing consciousness, they suggested that tiny structures inside neurons, called microtubules, might support quantum processes. According to their theory, these structures can briefly maintain quantum coherence, a delicate state where many possibilities exist at once. At some point, this coherence collapses in a very specific way, what Penrose calls “objective reduction.” Unlike the usual quantum collapse tied to measurement, this one is linked to gravity and is supposed to be fundamental and non-computational. The claim is that each such event contributes to a moment of conscious experience. It is a striking idea, but also a deeply controversial one. Critics argue that the brain is far too warm, wet, and noisy for such fragile quantum states to survive long enough to matter. In most known systems, quantum coherence disappears almost instantly under those conditions. From the perspective of mainstream neuroscience, classical processes in neurons already explain brain activity well enough, without needing quantum mechanics. So the theory remains speculative, and most scientists do not accept it as a working model of consciousness. Still, it has had an impact. It pushed researchers to take seriously the question of whether physics, especially quantum theory, might play a deeper role in the mind. It also overlaps with the growing field of quantum biology, where subtle quantum effects have been observed in some biological systems. Even if Orch OR turns out to be wrong, it has done something valuable. It forced people to ask whether consciousness is just computation, or whether it touches something more fundamental about how the universe itself is structured.











