Back when I was doing this, one of my "placeholder hypotheses" was that the physical correlate of conscious cognition is a series of octonionic gravitational instantons, perhaps implementing future SIAI director of research Ben Goertzel's fuzzy ideas about octonionic cognition. So I've tarried with the octonion cult.

(A placeholder hypothesis is something you don't exactly believe, but it's a complicated specific idea which is somehow suggestive of how you think the truth might be. The complexity is there as a starting point for the hypothetical future day when you have the time and knowledge to think about the issue properly.)