Or in this case, just trying to build technology that could lead to a real, working anti-gravity platform or hoverboard.  In theory, with enough power and the right transducers to create a huge amount of sound pressure, you could lift heavy objects off the ground.  The science and math required to do this is complex but it is my hope that this project gets people thinking about what would be needed to achieve that goal.  Maybe one day we will have the floating skateboard we all dreamed of ever since we saw it on the Hollywood big screen.