You can get closer and closer to it, but there's no minimum. Let's say that this value right over here is 1. So you could get to 1.1 or 1.01 or 1.0001. And so you could keep drawing some 0's between the two 1's, but there is no absolute minimum value there. Now let's think about why it being a closed interval matters, why you have to include your endpoints as kind of candidates for your maximum and minimum values over the interval. Well, let's imagine that it was an open interval. Let's imagine an open interval.