And so you might want to, there's other ways of randomly assigning. Now, once you do this, you see what was the change in A1c. If you see that, hey, you know, the change in A1c, well, one, if you see there's no difference in A1c levels between these two groups, and you're like, hey, there's a good probability that my pill does nothing, even, and once again, it's all about probabilities. There's some chance that you were just unlucky and it might be a very small chance and that's why you want to do this with a good number of people. And as we forward our statistics understandings, we will better understand at what threshold levels do we think the probability is high or low enough for us to really feel good about our findings. But let's say that you do see, let's say that you do see an improvement. You need to think about is that improvement, could that have happened due to random chance or is it very unlikely that that happened due purely to random chance?