Once century ago, when humans where bearly learning all over again to fly using machines heavier than air this diving may have seemed only a dream. A wondeful dream. No, humans don't get wings, not yet, but the technology allows us (or, to be correct: it allows only a few of us) to dive for some distances, like in the video.
Human flight athlete Alexander Polli wingsuit diving in New Zealand, Switzerland and Norway. This is proximity flying with a wingsuit and proximity flying in tracking gear (tracksuit) without a wingsuit; tracking gear consists of a jacket and pants that inflate with air, which then increases push force when you move your body through the air.
Proximity flying with a wingsuit is recommended only for very trained athletes and is considered a very dangerous sport. Proximity flying in tracking gear leaves even less margin for error and requires a more specific choice of flyable lines—if you get too deep, you don't have wings to help you get out.
