Rucker cleverly pulls off a romantic comedy about mathematicians in love. Following 2004's Frek and the Elixir
, this even zanier excursion into alternative versions of Berkeley, Calif., is set in university towns called Humelocke and Klownetown, full of quirky, charming life-forms human and otherwise and ruled by a god who's the female jellyfish-creator of Earth. All this seethes around Bela Kis; Bela's roommate, Paul Bridge; and Bela's girlfriend, Alma Ziff, who ping-pongs between them in a sometimes acute, sometimes obtuse love triangle. Bela and Paul struggle for their Ph.D.s under mad math genius Roland Haut by inventing a paracomputer "Gobubble" that predicts future events. While most of the mathematical flights may stun hapless mathophobes, Rucker's wild characters, off-the-wall situations and wicked political riffs prove that writing SF spoofs, like Bela's rock music avocation, "beats the hell out of publishing a math paper." (Dec.)