And that's a very important mathematical term. So what do we mean by a curve approaching a number asymptotically? What that means is every single time we increase the substrate concentration, the red curve gets closer and closer and closer to that VMAX value. But what it means to approach asymptotically is it never quite reaches it. So the red curve is never going to actually reach that VMAX quantity. Now that's problematic because we want to be able to calculate what v max actually is.