You know the thumb-thump technique of playing guitar if you've ever seen Animals As Leaders' Tosin Abasi play. Or if you're more bass inclined then you know the inventor of the technique, Victor Wooten. Now guitarist Andrew Bent has taken the technique to an almost fatiguing level by covering Meshuggah's "Bleed" using solely his fingers.
So seven minutes of just grinding the technique, followed by I'd imagine an ice pack and maybe some crying?