If it could save a person's life, would you find a way to make it faster? "If it could save a person's life, would you find a way to shave ten seconds off the boot time?" [Jobs] asked. Kenyon allowed that he probably could. Jobs went to a whiteboard and showed that if there were five million people using the Max, and it took ten seconds extra to turn it on every day, that added up to three hundred million or so hours per year that people would save, which was the equivalent of at least one hundred lifetimes saved per year. "Larry was suitably impressed, and a few weeks later he came back and it booted up twenty-eight seconds faster," Atkinson recalled. "Steve had a way of motivating by looking at the bigger picture." Walter Isaacson, Steve Jobs performancemotivation
Caustic (optics) Caustics made by the surface of water. In optics, a caustic is the envelope of light rays reflected or refracted by a curved surface or object, or the projection of that envelope of rays on another surface. The caustic is a curve or surface to which each of the light rays is tangent, defining a boundary of an envelope of rays as a curve of concentrated light. Wikipedia en.wikipedia.org Architectural CausticsCaustic Engineering caustics