​Sex 'n Spas: The Future (And Not So Future) of In-Flight Entertainment

Careening through the air 30,000 feet above the ground in seats that get smaller every day are too cramped to recline can be a brutal experience. To help us cope, airlines have evolved sophisticated on-demand entertainment in the form of games, movies, internet, and the occasional backrub. Here's a look at some of the ambitious ideas that got us there, the failures along the way, and concepts we might see in the future.

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