Corridor of uncertainty

The corridor of uncertainty is a phrase originating from the sport of cricket. It describes an area where a cricket ball can pitch during a delivery: a narrow line on and just outside a batsman's off stump. The name is derived from the opinion that this is the area in which a batsman struggles most to determine whether to play forward or back, or whether to leave the delivery. If a batsman leaves the ball, there's a chance the ball will turn inward and either bowl him or hit him with an increased chance of leg before wicket. If a batsman plays the ball, there's a chance the ball will go to the outside instead, leading to an outside edge that can be easily caught.