It’s funny that you introduce time in your equation, because it shows how your view is incomplete. In our visual system, you cannot reduce to three dimensions w

It’s funny that you introduce time in your equation, because it shows how your view is incomplete. In our visual system, you cannot reduce to three dimensions without creating a recursive relation. It should be more like: Ret(a,b,c)_t = f(Ret(a,b,c)_{t-1}, current_stimulus) Since it is a recurrence, we cannot reduce to three dimensions.