[flamesabers]

Interesting article. Information such as this may be useful with eroding the notion of an immutable wall between the two sexes. However, it doesn't sound like a change in genes would bring about a second puberty though:

If, say, an environmental toxin should disable the gene in an adult man, the research predicts that cells of the testes would become more female, but outward appearances wouldn't change.

I wonder though if progress is made in this field of study, social and political outcry would block further advancements, much like with stem cell research?