To put these Plan B inputs in perspective, the 0.3 to 0.4 seconds is, literally, the defining amount of time to save it if at all possible. Picture running wide in a corner. At 30 mph you are traveling 44 feet per second, in a 10-foot wide lane. A 0.4 second blink is 17.5 feet; more than enough to catalyze a panic-induced error. Well-trained riders also know that’s enough time to switch to Plan B, the predictive-reactive maneuver, to save the situation.