From The Drive, crediting Brian Edward Kahrs.

For reasons of basic physics, the propulsion system found in this popular recent video is unlikely to work in real life. (Which basic physics? Whatever forward-pushing pressure the blower’s wind is exerting on the umbrella, would be reduced by backward-pushing pressure from the blower itself, against the rider’s body. This is like trying to make your car go, by pushing on the dashboard while you’re in the front seat.)

But for reasons of basic entertainment, we feel duty-bound to present it here. An ABC News video gives the main idea. (A direct link to that video is here, it does not seem to work here as an embedded video.)

And a fuller explanation with longer video, from Stef Schrader of The Drive, is here.

The stages of technological innovation range from possibility, and proof-of-concept, at the beginning, to ridicule and derision at the end. Good to see this demonstration of two-stroke power reach those terminal stages.