Thanks to everyone who has responded so far. I have enjoyed reading them very much.
I will follow all the links offered by
@Enrique
I was familiar with the tiling problem described by Roger and his point that consciousness was not a phenomenon that had a purely computational or algorithmic description/solution.
I don't think electronic computing, based purely on von Neumann architecture, will ever create an AI system, which can pass the Turing test. But I think qubit systems (which can employ entanglement) combined with future advances in biological computing might.
Rogers comparison between the incompatibility of classical physics at the macro size and quantum physics at the sub-atomic and our current inability to explain consciousness as a serial/parallel set of processes sets the scene nicely for me.
I think it is likely that phenomena we are aware of in quantum mechanics such as entanglement, superposition, quantum tunneling etc must be part of the 'mechanisms'/processes involved in consciousness.
Stuart's expertise in anesthetics and the processes of switching consciousness off (at least from the standpoint of 'awareness of time passing' and the ability to be aware enough to memorialise/experience events) is a good in-road to understanding the processes involved.
If we can understand exactly what we are switching off then we should be able to progress in understanding consciousness more. I found Stuart's comment that all creatures from insects to humans and bigger require the same relative amount of anesthesia to render them unconscious a quite astonishing finding.
His comment that entanglement is the most likely candidate for the cumulative effect of firing neurons which 'work in parallel' to produce a 'thought,' was also compelling for me.
I wrote a long paper that I hope to publish soon which goes into way more depth about fundamental physics of the brain — Enrique
Fantastic!
but this preliminary stuff should give you a good idea of where the science of consciousness is headed post-initial Orch-Or. — Enrique
When both Penrose and Hameroff chose terms like 'ORCHestrate' and 'like an orchestra tuning up' and 'musical composition/arrangement,' I was immediately reminded of string theory. I wonder if interdimensional vibrating strings could be the fundamental at work within microtubules and dendrites?
The most essential aspect of consciousness, if we really want to avoid ambiguity and confusion, is the one that is impossible to talk about: it is your own experience about yourself, your perceptions, your emotions, whatever you perceive inside you. The moment we talk about it, we aren’t talking anymore about it, because we have immediately automatically selected, isolated, those aspects that we can talk about, leaving apart what is impossible to communicate, that is, the real experience of consciousness — Angelo Cannata
It's interesting that I find the above description akin to the 'measurement problem,' described in quantum physics.