At the same exact time. If we decrease the length of that axon, we decrease the L. And so we decrease our resistance and we increase the speed of the movement of that action potential inside our axon. And this is summarized in these two diagrams. So in diagram A we have an axon that is thick and that is short. In diagram two, in diagram B we have a long axon that is very thin. Now, from our discussion above we see that diagram B describes the axon that would ultimately propagate that action potential at a much greater rate than diagram B because in A we have a large area and a small length and that would decrease the resistance inside that axon.