This Video Will Never Make Sense

Summary
Mark and Ethan rummage through a room filled with items and contemplate what type of video should they make next. After thoroughly exploring the room, Mark decides to jump off the roof and into his pool, with the following scene edited in such a manner to make it appear as if Fischbach actually did it. Due to his fall being obscured by the rough cut, Mark attempts the jump one more time, as Amy gets distracted by Ethan's drawing and fails to capture his supposed descend, much to his dismay.