A colleague recently shared an experience I don’t intend to try personally—bungee jumping. I found his description of the event both fascinating and terrifying. To think of jumping headfirst from a bridge hundreds of feet in the air suspended only by a giant rubber band is not my idea of a good time. But his leap was not without support. He described not one, but two heavy-duty harnesses that secured him to his lifeline—and to safety. The careful design and proven testing of those harnesses gave him great confidence as he jumped into the air.