Forget wind turbines and solar panels. In the ragtag future, Tina Turner will get her mood lighting from hog lagoons. In Mad Max: Beyond Thunderdome, an army of pigs swarms beneath Bartertown, one of the last (semi) civilized outposts. The pigshit produces methane, a gas which keeps the city's power going. The only thing anybody remembers from the movie is the "Two men enter" chant, but that huge chaotic tapestry of pigs is the film's true moment of innovation.
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