I'm talking about not one atom more or one atom less than three glasses. There might be many people between 2.9 and 3.1, but no one is exactly three glasses a day. When someone says I'm drinking three glasses of water per day, that'd be a rough estimate. They're probably 3.0001 or 2.99999 or 3.15 or whatever else. And so instead, you could say what percentage falls in the interval maybe that is greater than or equal to 2.9 and less than or equal to 3.1. And so once you have an interval, then you actually can look at the area. So we're gonna go from 2.9 to 3.1.