Seeing Seth's future self slowly chopped up was painful. That was fucking insane. You don't see what's happening to present Seth, but just seeing his future self's fingers turn into stumps, then all of a sudden losing his foot, then legs, and in the end crawling to the door was fucked up. I was expecting this fucked up scene with present Seth on a chair bloody and into pieces, but I'm actually okay with how it played out.
This part was so fucked up and disturbing, but so GREAT. Gloriously grotesque.