And so you see, hey look, it looks like, there's definitely some outliers, but it looks like these two variables move together. It looks like in general, the more computer time, the higher the blood pressure, or the higher the blood pressure, the more computer time. And so you can make a conclusion here about these two variables correlating, that they're positively correlated. There is a positive, a reasonable conclusion, if you did the study appropriately, would be that more computer time correlates with higher blood pressure, or that higher blood pressure correlates with more computer time. Now when you do these observational studies, or when you interpret these observational studies, when you read about someone else's, it's very important not to say, oh well, this shows me that computer time causes blood pressure. Because this is not showing causality. And you also can't say, maybe you might say somehow blood pressure causes more people to spend time in front of a computer.