Evidence for a continuum limit in causal set dynamics
  We find evidence for a continuum limit of a particular causal set dynamics which depends on only a single ``coupling constant'' $p$ and is easy to simulate on a computer. The model in question is a stochastic process that can also be interpreted as 1-dimensional directed percolation, or in terms of random graphs. 
D. P. Rideout and R. D. Sorkin