When evolving the rules graphs from t to t+1 - do all nodes in the graph at cycle t need to be rewritten before any nodes on t+1, t+2,.... are evolved. All of the examples in the working session have had that property.
I understand the order of which nodes are processed at time t is not specified, and that some events at time t can result in a multi-way branch.
Another way of asking - is the graph evolution always breadth first (with random order across the breadth).
