What is an experience? Something that breaks a polite routine and for a brief period allows us to witness things with the heightened sensitivity afforded to us by novelty, danger, or beauty—and it’s on the basis of shared experiences that intimacy is given an opportunity to grow. Friendships nourished solely by occasional dinners will never have the depth of those forged on a trek or at a university. Two people who are surprised by a lion in a jungle clearing will—unless one of them is eaten—be effectively bonded by what they have seen.