There is a question pulsing quietly beneath the surface of every lab bench, every line of code, every equation scribbled onto a whiteboard: Why are we doing this? Is it for discovery, for prestige, for the betterment of humanity—or something more elusive? At Caltech, we pride ourselves on pushing the boundaries of what is knowable, and we do, no one says the opposite. We decode the stars, manipulate the quantum, edit genes and simulate the brain. But in a world full of complexity, speed, an...