Right, that's what I meant when I said that the advantage of a speed limit is locality. It allows you to compute the next state of a point in spacetime based only on the points around it.
But my point was that this also makes the universe more complex than an alternative fictional universe where information can be accessed instantaneously across any distance (which still allows for distributed computation, if synchronization or lazy computation is possible).
Possible alternative, but what would be a factor of locality in such an universe? And how would the universe store the infinite "light matter" in it's "memory", since light particle beam being instant means that it has no limits to where it can reach, and will grow depending on distance traveled (which is infinite)?
Some processes that are outside of scope we can sense seems like a too cheap explanation.
But my point was that this also makes the universe more complex than an alternative fictional universe where information can be accessed instantaneously across any distance (which still allows for distributed computation, if synchronization or lazy computation is possible).