Watching a Girl Spin Inside a Hula Hoop Is Freaking Dizzying

Go Pro HDs are the camera for recording extreme activities. Like skiing. Or skimboarding. Or surfing. And hell, even hulahooping. A girl attached a Go Pro HD to record what it would look like from the inside and it's crazy.

I can't tell what's moving. Is it the hula hoop? Is she spinning in circles? Is the world moving? My brain is melting. [The Daily What]