Keno, a traditional game with origins in Asia, is a busy game: from a huge cast of characters (numbers 1 through 80) it scrambles 20 across the stage every drawing. It looks complicated for the player, with several different types of bet available. And yet, it thrives better than most draw games in settings where there is an opportunity to play every few minutes. Why? The math of the game supports the hopeful intuitions of players, as I show in NASPL Insights April 2018.