Comment by kristjansson

You might find early agent-based models (e.g. the Sante Fe Institute's Artificial Stock Market[0]) interesting.

IMO the short answer is that such models can be made to generate realistic trajectories, but calibrating the model the specific trajectory of reality we inhabit requires knowledge of the current state of the world bordering on omniscience.

[0]: https://www.santafe.edu/research/results/working-papers/asse...