Existing beyond and outside of intelligence itself, The Mathiverse is the conglomeration of all mathematics, encompassing all of existence within itself as the abstract totality in which all ideas, both logical and illogical, are contained, with the 2-dimensional world in which the story takes place being nothing but one among many spaces. It is the central environment of exploration for the Space Hoppers, a group of extradimensional entities who travel throughout the theoretical expanse.