I'm interested to learn more about what ideas and work has been done with respect to Lagrangian / principle of least action etc. with respect to the Wolfram Physics Project; it is mentioned in Chapter 8 of the Technical Introduction, but I'm wondering if anyone knows of any "further reading" of sorts on this topic. Thanks!
Quote from Chapter 8.3: "quantum action density (Lagrangian): total flux (divergence) of multiway causal graph edges". I would be very curious to understand the derivation or connection.
