So this situation is described in this diagram. So we have the enzyme, we have the substrate shown in green, we have the inhibitor shown in purple, and we have this whole is our active side. So let's imagine we have a one to one ratio of substrate to inhibitor. And so that inhibitor is just as likely to get into that active side as our substrate. So for this particular case, because we're assuming the affinity of this enzyme to the inhibitor is the same as to our substrate. So we see that once the inhibitor binds to the active side, this substrate cannot get inside, and so the enzyme is rendered inactive.