Perhaps. But only because the mapping I've defined has so much symmetry. Instead of the range [X-25 ... X+25], assign to each sex a random one of the 200-choo

Perhaps. But only because the mapping I've defined has so much symmetry. Instead of the range [X-25 ... X+25], assign to each sex a random one of the 200-choose-50 (4.6 * 10^47) possible groups of partners sexes with size 50. It would be impossible to completely describe the set of sexual compatibilities without simply enumerating them, and therefore necessary to treat the sexes as a set of discrete entities.