## TGD Inspired Comments about Integrated Information Theory of ConsciousnessI received from Lian Sidoroff a link to a very interesting article by John Horgan in Scientific American with title "Can Integrated Information Theory Explain Consciousness?". Originally IIT is a theoretical construct of neuroscientst Giulio Tononi (just Tononi in the sequel). Christof Koch is one of the coworkers of Tononi. IIT can be regarded as heavily neuroscience based non-quantum approach to consciousness and the goal is to identify the axioms about consciousness, which should hold true also in physics based theories. The article of Horgan was excellent and touched the essentials and it was relatively easy to grasp what is common with my own approach to consciousness and comment also what I see as weaknesses of IIT approach. To my opinion, the basic weakness is the lack of formulation in terms of fundamental physics. As such quantum physics based formulation is certainly not enough since the recent quantum physics is plagued by paradoxes, which are due the lack of theory of consciousness needed to understand what the notion of observer means. The question is not only about what fundamental physics can give to consciousness but also about what consciousness can give to fundamental physics. The article Consciousness: here, there and everywhere of Tononi and Koch gives a more detailed summary about IIT. The article From the Phenomenology to the Mechanisms of Consciousness: Integrated Information Theory gives a more techanical description of IIT. Also the article of Scott Aaronson was very helpful in providing computer scientific view about IIT and representing also mathematical objections. Tononi and Koch emphasize that IIT is a work in progress. This applies also to TGD and TGD inspired theory of consciousness. Personally I take writing of TGD inspired commentary about IIT as a highly interesting interaction, which might help to learn new ideas and spot the weaknesses and imperfections in the basic definitions of TGD inspired theory of consciousness. If TGD survives from this interaction as such, the writing of these commentaries have been waste of time. The key questions relate to the notion of information more or less identified as consciousness. - In IIT the information is identified essentially as a reduction of entropy as hypothetical conscious entity learns what the state of the system is. This definition of information used in the definition of conscious entity is circular. It involves also probabilistic element bringing thus either the notion of ensemble or frequency interpretation.
- In TGD the notion of information relies on number theoretical entanglement entropy (EE) measuring the amount of information associated with entanglement. It makes sense for algebraic entanglement probabilities. In fact all probabilities must be assumed to belong to algebraic extension of rationals if one adopts p-adic view about cognition and extends physics to adelic physics involving real and various p-adic number fields. Circularity is avoided but the basic problem has been whether one can apply the number theoretic definition of entanglement entropy only in p-adic sectors of the adelic Universe or whether it applies under some conditions also in the real sector. Writing this commentary led to a solution of this problem: the state function reduction in the intersection of realities and p-adicities which corresponds to algebraic extension of rationals induces the reductions at real and p-adic sectors. Negentropy Maximization Principle (NMP) maximizes the sum of real and various p-adic negentropy gains. The outcome is highly non-trivial prediction that cognition can stabilize also the real entanglement and has therefore causal power. One can say that cognition tames the randomness of the ordinary state function reduction so that Einstein was to some degree right when he said that God does not play dice.
- IIT identifies qualia with manner, which I find difficult to take seriously. The criticism however led also to criticism of TGD identification of qualia and much simpler identification involving only the basic assumptions of ZEO based quantum measurement theory emerged. Occam's razor does not leave many options in this kind of situation.
The comparison of IIT with TGD was very useful. I glue below the abstract of the article comparing IIT with TGD inspired theory of consciousness.
For background see the new chapter TGD Inspired Comments about Integrated Information Theory of Consciousness or the with the same title. |