And then maybe after three months, we would measure their A1c after. But the next question is, how do you divvy these 100 people up into these two groups? And you might say, well, I would want to do it randomly. And you would be right, because if you didn't do it randomly, if you put all the men here and all the women here, well, that might, first of all, sex might explain it, or the behavior of men versus women might explain the differences or the non-differences you see in A1c level if you get a lot of people of one age or one part of the country or one type of dietary habits. You don't want that. So in order to avoid having an imbalance of some of those lurking variables, you would want to randomly sample. And we've done multiple videos already on ways to randomly sample.