Sex secrets of outer space. That’s what a Witness billboard read sometime late last year. I was driving home along Hesketh Drive with my two sons, Thomas (11) and Francis (10) when Francis pointed it out to me. I recalled thinking to myself that the article could have introduced some more humour by a light-hearted look at the implications of zero gravity on gender politics, that as an environment where nobody would get to be “on top” it would “level the playing fields,” so to speak (kinetically anyway). I also thought that space tourism would no doubt bring with it a renewed and necessary interest in the Kamasutra, and I wondered if publishers were preparing for this? But mostly I was just annoyed with myself at not getting there first. And that’s where I had pretty much left things before Francis asked for an explanation.