The Collider is a door that only opens to those who don’t believe in its existence. Anyone who wants to pass through it must make a 10-meter run toward the door, without deceleration, before it springs open rapidly at the last instant. A series of sensors along the runway detect the runner’s speed, which is instantly analyzed by a computer algorithm that finally decides whether to open the door or not. The Collider provocatively asks the question: Do we trust the technologies we build? How should we trust them? Audiences find their own answers in participation, with their own bodies.