Burton C. Bell's introduction to the collected volume references the myriad ways in which the word can (and is) used in the comic, as well as giving a humorous nod to the 'singularity' of the writer.
Mathematical singularity | Singularity Sky | Singularity | singularity | The Singularity is Near | Singularity (Bill DeSmedt novel) | Singularity University | BKL singularity |