Ok, that is simply nuts.

Yeah, just throw yourself down the mountain without the bike; it'd be a lot cheaper. Or take up a simpler hobby, like shark wrestling.

Trans America Trail on steroids?

I'm gonna have to say that the camera makes this look worse than it really is (narrower trail and steeper dropoff). Having said that, it's probably only marginally less horrific in reality than it looks in the video.

Having ridden dirtbikes on admittedly much smaller hills shaped like that, I can say it's damned impressive.