With Assisted Reproductive Technologies, science has managed to use technology to prise apart previous associations between reproduction and sex. With gender, class and queer theory, the social sciences have prised apart previous associations between gender and sex. We have found that knowledge through science, like knowledge of sexuality, can’t be pinned down to absolutes. “The more you know, the more you know you don’t know,” said Aristotle. While science may value the systematic and objective, it cannot escape the baffling convolutions of lived experience. How does life influence knowledge, and knowledge influence life?