**Vi Hart's Pi Day Venn Piagram**

Math whiz Vi Hart makes a **pie** for **Pi Day** , even though she doesn't like **pi** , finds it boring, and prefers tau. But she likes... ...thinking about Venn diagrams, so she made a Venn " **pieagram** ."[https://youtu.be/3mMeEKGyngM] (YouTube link)Ok...