 He also credited Murphy with carefully discussing the limitations of research by LeVay, Bailey, Hamer, Hall, Kimura, and Nicolosi.He wrote that while Murphy's speculation that science might develop means of preventing or altering homosexuality, and that the number of gay people would be diminished as a result, might seem "odd and chilling", it was "an interesting exercise in looking at the implications scientific knowledge might have for people's choices that could result in a minority's becoming smaller, a concern not limited to gay and lesbian people.