The word “polymath” teeters somewhere between Leo­nardo da Vinci and Stephen Fry. Embracing both one of history’s great intellects and a brainy actor, writer, director and TV personality, it is at once presumptuous and banal. Djerassi doesn’t want much to do with it. “Nowadays people that are called polymaths are dabblers—are dabblers in many different areas,” he says. “I aspire to be an intellectual polygamist. And I deliberately use that metaphor to provoke with its sexual allusion and to point out the real difference to me between polygamy and promiscuity.”