Following Sutton's discussion of relations between the bucket brigade for classifier systems and TD-methods, at a given time the strength of a connection leading to an active unit (or the fraction of its contribution, ) may be interpreted as a prediction of the weight substance it will receive. This prediction recursively depends on the predictions of weights that will be active at later time ticks. Thus also predicts the ultimate environmental payoff, which terminates the recursion. A dynamic equilibrium of weight flow means that predictions meet reality.
Unfortunately, the competitive element introduced by the winner-take-all-networks makes an analysis of the NBB anything but straight-forward. The same holds in the case of classifier systems: Nobody so far has proven a theorem that demonstrates that the bucket brigade mechanism must work as desired.