Tanya X. Short talks with Dirk and David about her design axiom: if the player doesn't see it, it might not exist. They discuss both some of the games Tanya has worked on, as well as other games that contradict or reinforce this rule. One key point of the discussion is how complex (and costly) systems created by the designers might go completely unnoticed by players if the user interface or the game's objectives don't align well with the system.