This is no more circular than the observation that an RC circuit has a settling time. If you want a reliable instant reproduction of S&D, they exist. In college

This is no more circular than the observation that an RC circuit has a settling time. If you want a reliable instant reproduction of S&D, they exist. In college I had a lecture where the students were given a role (producer or consumer) and a budget, and the price indeed converged as predicted (despite my best efforts to set up a cartel of producers). Just don't expect the US economy to cooperate and provide a controlled lab setting.