t(A, B) = w(A, B), if w(A, B) is defined
t(A, B) = a Σ w(A, C) t(C, B) / |N(A)|, for C in N(A), if w(A, B) is undefined and w(A, C) > 0"
Yeah, thats what bitcoin should have been from the beginning! Plain simple, even easy understandable for the average Joe.