(Wall Street Journal) – Shortly before Daniel Kahneman died last March, he emailed friends a message: He was choosing to end his own life in Switzerland. Some are still struggling with his choice.

Kahneman was one of the world’s most influential thinkers—a psychologist at Princeton University, winner of the Nobel Prize in economics and author of the international blockbuster “Thinking, Fast and Slow,” first published in 2011. He had spent his long career studying the imperfections and inconsistencies of human decision-making. By most accounts—although not his own—Kahneman was still in reasonably good physical and mental health when he chose to die.

Kahneman was widely mourned nearly a year ago when his death was announced. Only close friends and family knew, though, that it transpired at an assisted-suicide facility in Switzerland. Some are still struggling to come to terms with his decision. (Read More)