We can find a function to express past stock prices. There isn't one for the future, unless said future is somehow predetermined? Is it, given enough input da

We can find a function to express past stock prices. There isn't one for the future, unless said future is somehow predetermined? Is it, given enough input data? Does this discussion then distill down to philosophy? Do living beings have agency, or are they simply very complex NNs? How one answers that speaks to consciousness as much as it does the prospect of a predictive stock price model.