 you're completely bs-ing yourself. You think you know this, but you actually don't. And really quickly this is how it works. So imagine you had a blank piece of paper, I'm just going to use a sticky note here, and you have told yourself that you have memorized everything from lecture one. A good test is saying perfect watch. Go ahead and put it on a piece of paper, go ahead and just scribble it, everything you remember. And you're going to quickly find out that there are going to be places where you're like, oh man, I know that there was three bullet points about this topic, but I only remember one of them. Those are great opportunities because of the gaps in your knowledge where you can just say I'm going to mark this on the piece of paper. I'm going to do the rest of the lecture or whatever topic you're reviewing. And then you go back to your syllabus, your notes, your slides and saying, okay, what did I miss? And you fill in the holes and then you do it again. And this essentially in my opinion is one of the best techniques you can use to prepare for the test, because now you can no longer be as yourself. Visually, you can say, actually Lux you don't really know that or you don't feel very confident. And so if it was a pathway or a step-by-step thing or if I was in economics and I need you to draw a bunch of graphs and just have to do it. And if I couldn't, then I needed to roof do it.