And the reason why we do this in studies is because there's something called the placebo effect. Oftentimes, just by taking something that you think is good for you, some medicine that you think might help you, it actually does help you. And we can think about why the placebo effect happens, but this is well-documented. And so when people are trying to test medicine, they wanna say, well, does this have an effect above and beyond the placebo effect? And so that's why they are putting them in these two, that's why they're comparing the real pills to the placebo pills. So they randomly assigned a group of 300 patients suffering from migraines into two groups. So they have their 300, they have their 300 patients right over here, and they're randomly putting them into the placebo group, placebo group, or the real, or the real pill group.