Murphy's law is an adage or epigram that is typically stated as: "Anything that can go wrong will go wrong." In some formulations, it is extended to "Anything that can go wrong will go wrong, and at the worst possible time."

John Paul Stapp was an American career U.S. Air Force officer, flight surgeon, physician, biophysicist, and pioneer in studying the effects of acceleration forces on humans. He was a colleague and contemporary of Chuck Yeager, and became known as "the fastest man on earth". His work on Project Manhigh pioneered many developments for the US space program.