Well, I nearly pursued computational theory of mind and the
  "mathematical universe but I had to put it aside for a more
  integrated set of notions. Similar to the mathematical multiple
  universes (which I reject as an objective reality), I *do*
  embrace a form of "reality of fictional realities" cognitively.
  I see a healthier psychological integration as including seeing
  time not as an arrow with a simple cause effect or a block
  universe slice model but rather someone incorporating all of
  their fictional selves as part-of-self. The roads-not-taken as
  valid as the roads taken - not in a literal sense of "the me
  that got the funding to continue college studies walking on a
  similar planet somewhere" but rather an integration of the
  fictional within as a reality that very concretely influences
  our current choices in _this_ timeline that we're pursuing. It's
  not-ready-for-prime-time as an idea, just something I've been
  toying with. Cellular automata is quite simple from a conceptual
  POV. I analogize to sewing machines with pattens. I remember
  doing the "Game of Life" in BASIC on my little Tandy Color
  Computer 2 in the 80s from a computer magazine and doing the
  same thing as a programming exercise in college, so the concept
  is simple enough both to comprehend and to program. My interests
  are more in the conceptual rather than the precision, along
  these lines, I place my interests in the "High Accuracy, Low
  Precision" quadrant. I had a *little* jump start in
  self-organizing systems, chaos and complexity theories back in
  1990/91, mostly through late night talks over a couple of beers
  with a professor who was obsessed by them.. and by fractal...
  and the number 17. It's likely that [1]Jera Wolfe will surpass
  me on precision in his studies: again, precision is not my goal
  but accuracy with low precision. It allow me to provide
  conceptual bridges between people at different levels of
  comprehension ability, to provide analogies that are not perfect
  (none are) but are workable to a large population, as I am in
  contact with people of all ages and education levels online and
  in real life, so my comprehension is to act as an asistant.

References

  Visible links
  1. https://www.facebook.com/jera.wolfe.3?hc_location=ufi