The Algebastard refuses to hand it over unless Rick solves a "simple" equation: —a mathematical proof for the perfect hypothetical escape plan. Specifically: given infinite universes, calculate the exact probability of surviving a jump into a vat of acid while bad guys shoot at you, but only if the acid turns out to be fake, the floor is a trapdoor, and also you look cool doing it.
"Morty! Drop the ceiling-gunk, we’re going to the Exo-Math Dimension! It’s a whole reality where mathematical constants have physical form. I need to harvest the square root of a negative pineapple." rick and morty s06e03 tv
Back home, Jerry finishes the "enlightenment chair." It assembles itself into a sleek, minimalist throne and speaks in a soothing, passive-aggressive British voice (voiced by Emma Thompson). The Algebastard refuses to hand it over unless
"You literally just cried during the logic bomb." Drop the ceiling-gunk, we’re going to the Exo-Math
"The Vat of Acid Equation"
"That was acid reflux of the soul. Now shut up."
"So you’re telling me this whole thing is just a metaphor for Rick avoiding therapy?"