Question: How many people does it take to screw in a lightbulb? Answer: It doesn’t matter anymore. LED lightbulbs last a lot longer than their incandescent predecessors. As The New Yorker’s J. B. MacKinnon explains, “this would seem to be a good thing, but building bulbs to last turns out to pose a vexing problem: no one seems to have a sound business model for such a product.” How does an industry make money when planned obsolescence has always been the name of the game?