We have examined many causes for homosexuality in the preceding pages, both biological and social. And although an interesting topic of debate, no one theory or experiment leads to a definitive answer. Some believe that the characters found on Xq28 are the Holy Grail of homosexuality research, the elusive 'gay gene'. Others may place stock in the theories of Foucault and Halperin. Perhaps Simon LeVay did reveal to us that anatomy is the key to understanding the difference in sexual orientation. Perhaps there is no one answer, that sexual orientation, whether homosexual or heterosexual; gay, straight, lesbian, or bisexual, all are a cause of a complex interaction between environmental, cognitive, and anatomical factors, shaping the individual at an early age.