At its best, experimental film challenges convention to provoke and even transcend the way we compose our lives on and off screen. We offer the best short films we’ve seen this year in pursuit of that goal. “Buffalo Juggalos” celebrates a Buffalo, New York, subculture with long takes on the favorite activities of the Juggalos—the first and foremost of which is causing mayhem. “Cathedrals” offers six startling responses to the question, “If buildings could talk, what would they say about us?” And Horse ponders his loneliness in one of our favorite shorts in the festival, “The Horse Raised by Spheres.” These shorts are so good, you’ll want to watch them a second time.