Walter is off in his lab, still on his acid trip. He sits on the floor, slumped against a cabinet while scenes from his past play out around him. Everything in the lab -- including himself at certain points -- becomes an impromptu screen upon which images are projected. First he remembers comparing himself to God. Then he remembers arguing with his wife, pleading with her to believe in him. He remembers Peter dying, and then creating the portal into the other universe over Carla's protestations. Nina tries to stop him, too, but he ignores her. "There has to be a line we can't cross," Carla says in the projected memory. Walter disagrees: "My son is dying, Dr. Warren. I will not allow that to happen again." Carla quotes Oppenheimer quoting the Bhagavad Gita. "Now I am become death, destroyer of worlds." Walter remembers Peter -- his stolen son -- drowning in the icy lake because in this timeline, September wasn't there to save him. The image of Peter floating in the dark green-blue of the water projected across Walter's defeated from is hauntingly lovely.
With renewed determination, Walter takes his book, places it in a bowl with lighter fluid and sets it ablaze. "The journal doesn't matter," Carla says. "Even if you burn it, it's too late, now that you remember all the things you're capable of." Slightly Younger Nina Sharp appears behind him to tell him he has to keep fighting. "You're too tired to do that," Carla says. "There's nothing to burn." Walter looks down at the bowl. The flames burn, but there is no book. Either his finding it earlier was just part of his acid trip, or he secretly stashed it away (again) for safe keeping. "You've been him longer than you've been you," Carla says. Walter looks despairingly at the empty bowl, then lifts his gaze to see that Carla has vanished. Someone much more ominous has taken her place. Now, Walter stands looking only at himself. Carla was himself, as was Nina, but this other Walter -- the hubristic one of his past --- is the one who trumps them all.
Tippi normally recaps Supernatural and Doctor Who, but was pulled temporarily into an alternate universe where she recaps Fringe. You can contact her at firstname.lastname@example.org, or find her on Twitter: @TippiB.