If you're big into skateboarding, chances are you know the name Adam Miller.
And if you're not into skateboarding, that's okay. In fact, you don't have to know a thing about Adam to appreciate how incredible this video is.
According to the Ride YouTube Channel, Adam has just pulled off the "first-ever gainer back flip from one skateboard to another, down six stairs!"
In other words, Adam skates towards a set of six stairs, does a backflip off one skateboard and sticks the landing on another board at the bottom of the stairs.
Make sure you watch the slow-motion replay at the end, so you can really get an idea of how wild this trick is.