Thinking in Bets: Making Smarter Decisions When You Don't Have All the Facts

by Annie Duke

Even when directly confronted with facts that disconfirm our beliefs, we don’t let facts get in the way. As Daniel Kahneman pointed out, we just want to think well of ourselves and feel that the narrative of our life story is a positive one. Being wrong doesn’t fit into that narrative. If we think of beliefs as only 100% right or 100% wrong, when confronting new information that might contradict our belief, we have only two options: (a) make the massive shift in our opinion of ourselves from 100% right to 100% wrong, or (b) ignore or discredit the new information. It feels bad to be wrong, so we choose (b). Information that disagrees with us is an assault on our self-narrative. We’ll work hard to swat that threat away. On the flip side, when additional information agrees with us, we effortlessly embrace it. How we form beliefs, and our inflexibility about changing our beliefs, has serious consequences because we bet on those beliefs.