Early experiments with mice have shown that both sperm and eggs can be generated from the stem cells of males, and eggs from that of females, and that they can be fertilized to produce viable young.

Djerassi described the idea of being able to access healthy eggs later in life as something set to be a fundamental tool of family planning, and one that will empower women just as the pill has. He talked of female colleagues on tough career trajectories just at the time in their life when they are most fertile, and then on into the years leading into sterility.

It’s no coincidence in the decade of our life when we are most biologically capable of reproducing, men and women are also working full steam on their studies or on building their careers. In our 30s, fertility declines – after 35, exponentially so — and specifically for women. Around age 50, while the rest of our faculties continue functioning beautifully, the ability to reproduce comes to an abrupt stop.