Last year, the world’s authority on decision-making ended his life in a clinic in Zurich.

How Daniel Kahneman decided to do that is instructive. True, the Nobel Prize winner and author of Thinking Fast and Slow was 90, but he wasn’t actively dying. He didn’t have cancer, or heart disease or Alzheimer’s. But as he wrote in an email to his close friends: “I have believed since I was a teenager that the miseries and indignities of the last years of life are superfluous, and I am acting on that belief. Most people hate changing their minds, but I like to change my mind. It means I’ve learned something.”

Read on…