Human flight. Since well before the Wright Brothers invented a plane that actually flew, it’s been the dream of many. However dreams aren’t made without a few stumbling blocks along the way. In the case of this brutal video of BMX pilots at the Milwaukee Hillside Dirt Jam, the stumbling blocks are huge mounds of dirt that cause plenty of carnage and, we suspect, a broken bone or ten. As the saying goes, you gotta pay to play.