This principle is illustrated by his discovery more than 20 years ago when playing basketball that if air could be injected into the soles of his shoes he would be able to jump higher and better; or when he was crossing the street and had the walk signal turn red before he had made it to the other side, making him wonder why a timer could not be placed under the pedestrian walk signal.
像他自己在二十多年前玩籃球時就發覺，如果能在鞋底下灌進空氣，一定能跳得更高更好；或是在過馬路時常因紅燈突然亮起而心慌不已，就想到為什麼不能在號誌下加裝時間作提醒。