Playing Pool with $|psi rangle$: from Bouncing Billiards to Quantum Search

In Playing Pool with $pi$, Galperin invented an extraordinary method to learn the digits of $pi$ by counting the collisions of billiard balls. Here I demonstrate an exact isomorphism between Galperins bouncing billiards and Grovers algorithm for quantum search. This provides an illuminating way to visualize Grovers algorithm.