http://aip.scitation.org/doi/abs/10.1063/1.523436 http://aip.scitation.org/doi/abs/10.1063/1.523436 ED: This is the starting point of the Causal Set [1] progra

http://aip.scitation.org/doi/abs/10.1063/1.523436 http://aip.scitation.org/doi/abs/10.1063/1.523436 ED: This is the starting point of the Causal Set [1] program. Don’t ask me for details, I don’t know any. But the wikipedia article looks interesting. Seems they are trying to figure out how causality restricts models with some level of discreteness. [1] https://en.wikipedia.org/wiki/Causal_sets https://en.wikipedia.org/wiki/Causal_sets