Very good, I asked, you answered. I was looking for the animal, neurological model for this. If the pantheists are correct, consciousness develops from intelligence, as you have stated. Now, since I cannot do math, but can do words, let's extend the discussion to these philosophers of science. One is Canadian, John Lelise. University Guelph.
Another is British philosopher, Philip Goff , University of Durham. He discusses some of the ideas I attained interest in.
There is also my oft-posted paper from physicists like Lee Smolin at Perimeter, Canada, and Stephon Alexander.
Here we have two things, which maybe you have no use for?
1. That complex situations in the Universe lead to consciousness?
2. That the universe produces consciousness in non-biological ways. Or may you do!
Spinoff's?
Physicist Fred Hoyle's science fiction like the 1957 The Black Cloud.
Ludwig Boltzman and the Universe being a Boltzmann brain (not zillions, One!)?
Ok. Done.