“Jobs’s immersion in Zen and passion for design almost certainly exposed him to the concept of ma, a central pillar of traditional Japanese aesthetics. Like many idioms relating to the intimate aspects of how a culture sees the world, it’s nearly impossible to accurately explain — it’s variously translated as “void,” “space” or “interval” — but it essentially describes how emptiness interacts with form, and how absence shapes substance. If someone were to ask you what makes a ring a meaningful object — the circle of metal it consists of, or the emptiness that that metal encompasses? — and you were to respond “both,” you’ve gotten as close to ma as the clumsy instrument of English allows.”