“When the facts change, I change my opinion. What do you do, sir?” — John Maynard Keynes In many situations, we don’t follow Keynes’ approach. In fact, in light of new evidence, we usually don’t update our initial beliefs as…
Read More
You might have heard that Lance Armstrong is facing some doping charges. Last week, a number of organizations, like ESPN or the LA Times ran polls to know if people thought he had been doping. The results were pretty evenly balanced: in ESPN’s…
Tom and Ray Magliozzi—the Tappet Brothers—are MIT-educated mechanics that take calls from listeners and help them solve their car issues while making jokes about themselves, the caller, and others. The premise is straight-forward: callers describe the symptoms of their automotive…
Issue trees (also called issue maps and logic trees) are at the heart of our problem-solving approach and, therefore, are a recurrent theme on this site. We use two types of trees: diagnosis trees and solution trees. An issue tree…