When things are complicated, we probably develop a partial model first (taking only some things into account) and maybe a full model later. The partial model may give worse results, compared to trusting the experts blindly. And yet, making your own model brings you closer to understanding how things work.
Like, maybe you are trying to estimate some X = A + B + C + D + E, but so far your model is only X = A + B + C.
When things are complicated, we probably develop a partial model first (taking only some things into account) and maybe a full model later. The partial model may give worse results, compared to trusting the experts blindly. And yet, making your own model brings you closer to understanding how things work.
Like, maybe you are trying to estimate some X = A + B + C + D + E, but so far your model is only X = A + B + C.