Thanks, Akinbo.
I appreciate the dialogue so need to worry about "rambling" on. I think I see what you're model is getting at, but I don't know if it is as intuitively/aesthetically attractive to me as some digital physics models... but that isn't to say that it doesn't have merit.
I guess in the set/network model I just described, the "distance" (or space) is only implied by the relationship between the objects in the universe and does not exist as a "substance" in the universe. So I guess from your model's perspective, it could not be an active participant in the creation or destruction of itself. But how would you feel about a set/network updating algorithm that existed outside the universe (but controlled the objects in the universe) but indirectly referenced "distance" (i.e. network or connection distance) when updating the model (i.e. causing movement)? Would "distance" be a "participant" in that case, from your perspective?
I agree that this does sound like it differs from relativity and lends itself more to QM experiments that seem to disprove realism, but I think an updating algorithm to a network model could still yield phenomenon that could be described as "gravitational waves"... not that I have generated this model:) But I'm sure modeling gravitational waves in a simulation on a computer is doable. The question would just be whether you could make it an emergent phenomenon in the model or whether you had to explicitly code it in. If you could make gravitational waves emergent in a network/set model, this would lend credence to the set/network theory(from the gravitational waves perspective), while if you had to explicitly code gravitational waves in to your model, you haven't really shown/proven anything.
Talk to you soon,
Jon