no its not possible, and that is the great hubris of many economic planners. They wind up creating simulations that just enforce their bias (because they write code that assumes their biases).

you would literally be trying to model every individual's decisions.

here's simple test: try to predict the stock market -- this is essentially what you are asking (the stock markets can be rigged and it wouldn't matter for this test to be useful because that is actually part of the prediction).

nobody even comes close.