transition said:
What are the simplist computational elements (devices) of a planet and solar system (pre life but where organic life would possibly emerge). Of the universe more generally, possibly accretions of galaxies also.
Is a spinning planet and orbit around a sun a clock? Clocking. Do these cycles power embedding, or embed order, and is it a type of memory?
I see three aspects here. Actually, no, there are even more aspects than that when you take account of the fact that a conventional computer with all the standard logic gates can built from Conway’s game of life cellular automaton.
RNA can be used as a base on which to build a computer.
I would like to believe that a pre-RNA primordial soup could do computation, but I can’t prove it.
My favourite early computer was built in Roman times using ropes and pulleys.
As for time. The thermodynamic temperature of the Universe provides an absolute measure of time more accurate than the motion of planets. Everything has a memory, remember “total perspective vortex” of Douglas Adams, but in a physical system the memory degrades due to a number of effects such as chaos and entropy gain.
Let’s go back to basics and consider what is needed for computation. Can you have computation without logic? If fed the same input, how much variation in output is a computer allowed?