[ExI] Some new angle about AI

[scerir]

[Stathis] 
It still remains a possibility that the brain does in fact utilise 
uncomputable physics. [...]

[Stefano]
One wonders, since there is no obvious hint that quantum mechanics or other 
low-level physical effects play any role with regard to the [...]

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We can find "uncomputability"  in quantum physics (i.e. essential randomness, 
contextuality, etc.) but also in classical physics. So it is possible that the 
brain does in fact utilise, in a technical meaning, uncomputable physics. 
Speaking of elaboration of information by the brain (here supposed to be a 
complex quantum system), according to a speculation the mind/brain might encode 
"propositions" in quantum states, and then might "measure" these quantum states 
to test the "truth values" of the propositions. Random outcomes given by 
measurements associated with the propositions should mean that the "truth 
values" are uncertain, that is to say that the propositions are undecidable 
(within the context of that mind/brain, and its stored information). But it is 
just a speculation.