I will confess: I never memorized Bayes theorem. I just imagine rectangles getting chopped into overlapping pieces, and visually derive it every time I need to

I will confess: I never memorized Bayes theorem. I just imagine rectangles getting chopped into overlapping pieces, and visually derive it every time I need to use it. I've found that this actually worked better for me than trying to apply a formula, since you're less likely to forget intuitions when you're thinking through a problem. Pictures are, by far, my favorite way to explain Bayes theorem.