Well, let me draw. So if this axis is, let's say this is computer time, computer time, and this axis is blood pressure. Blood pressure. So let's say that there's one person who doesn't spend a lot of time on a computer, and they have a relatively low blood pressure. There's another person who spends a lot of time, has high blood pressure. There could be someone who doesn't spend much time on a computer, but has a reasonably high blood pressure. But you keep doing this, and you get all these data points for those 1,000 people.