I’m with you in Rockland where you scream in a straightjacket that you’re losing the game of actual pingpong of the abyss
I feel like the repetition here serves a specific purpose of illustrating the state of insanity his friend is devolving to, The repetition creates a rhythm as we read on and watch the friend descend into madness, in a way I felt that the friend was actually thinking, rather obsessively, that Ginsburg was with him in Rockland. Striking and moving, I'm unsure of its exact intent.
