Thank you for your interest in my work. The model that I describe is based on fluid dynamics, which is mathematically identical to a random resistor network. Causality results from the a very simple mechanism, i.e. flow and resistance to flow (in the form of matter). The interaction of matter and timeflow results in a mass potential, and variance in that potential induces changes in momentum (i.e. causality). I am not sure how Sorkin's model can be adapted to mine, but the two share the concept of infinite scalability and a lower limit related to the Planck length, where spacetime becomes discontinuous. At some critical p-value in my model, a phase transition results in the formation of matter, which may be explosive akin to the "Big Bang." Such a phenomenon is discussed in the literature in relation to the use of percolation theory to explain disease epidemics, population dynamics, etc. With regard to the cosmological constant, the expansion of the universe in my model is a consequence of timeflow differentials between different geographical points in the universe. As timeflow slows with the accumulation of matter (decrease in p-value), there is an associated increase in velocity between these points, which has an expansionary effect.
