When the Jeff Bezoses and Jack Dorseys of the world leap from the bow of the ships they’re sailing forth, what will happen to them? Where will they go? When Paul Allen, the cofounder of Microsoft who died this week at age 65, left the business he started, he traveled the world. He collected paintings and learned to scuba dive. Scuba diving, he said at the time, “takes me away from myself.” Allen had it right.

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