When you listen to dubstep music non stop for up to hours or days. Typically the listener will be so mind blown that they may look at life differently or could suffer from the awesomeness of reoccurring flashbacks of the dubstep music in his or her head. These flashbacks and noises in your head can be permanent. No one ever comes back the same after a marathon of dubstep. Effects may vary.
Dude, John won't talk or look at anyone after his dubstepathon. He is staring and bobbing his head to no music. I guess that's what happens when you don't eat, or drink and just dubstep for 72 hours.