And so what that basically means is, before this reaction can actually take place, we have to begin with a primer molecule. So how do we actually establish the primer molecule? Well, once again, we'll talk about that in the next lecture. So in this lecture, we have to understand two important things. Number one is glycogen synthesis is simply not the reverse process of glycogen breakdown. They follow completely different pathways in the same way that gluconeogenesis is not simply the reverse of glycolysis.