Robert Edwards won the 2010 Nobel Prize for IVF. By then, millions of children had been born through it. On the very day his Nobel was announced, the Vatican said giving him the prize was ‘completely out of order’. Same person, same achievement, same day — celebrated as a saviour by some, condemned as a murderer by others. That is what a real moral controversy looks like. It doesn’t dissolve, even after the technology has changed millions of lives.