
Rethinking Thinking
TED-Ed
5 mins 33 secs
Ages 14 - 18

This video explores the 'ladder of inference,' a model that explains how we process experiences subconsciously. It breaks down the steps from raw data observation to action, highlighting how our perceptions and assumptions shape our beliefs and reactions. A real-life example is used to illustrate the process.
Imagine a microscopic-sized ladder contained in the part of our brain that we'll label our subconscious. The ladder of inference, which was first proposed by Harvard professor Chris Argyris, is the basis of this model. Every time we interact with someone, that experience enters the ladder at the bottom. That same experience zips up the ladder in the blink of an eye, exiting it at the top. This process happens thousands of times a day without us knowing it. Let's focus on what happens on each rung of the ladder. On the first rung, we have the raw data and observations of our experience. This is very similar to what someone watching a video recording of our experience would see. Moving up to the second rung, we filter in specific information and details from our experience. We unknowingly filter based on our preferences, tendencies, and many other aspects that we believe are important. On to the third rung, we assign meaning to the information we have filtered through. This is where we start to interpret what our information is telling us. On the fourth rung, a very crucial thing happens. We develop assumptions based on the meaning we created on the previous rung, and we start to blur the distinction between what is fact and what is story. On the fifth rung, we develop conclusions based on our assumptions. This is also where our emotional reactions are created. On the sixth rung, we adjust our beliefs about the world around us, including the person or people involved in our experience of the moment. On the seventh and final rung, we take action based on our adjusted beliefs. Still with me? Great! Let's take a real-life example and run it up the ladder to see how this all works. Have you ever been cut off in a parking lot, signal light on, as you steer toward your coveted spot only to slam on your brakes at the last minute as someone pulls in front of you and steals your spot away? Imagine that experience and notice all of the data and observations landing on the first rung of your ladder. Now let's watch what we pay attention to on the second rung. Who cares that it's sunny out and the birds are chirping? The 50% off sign outside of your favorite store is meaningless. You filter in the sensation of your grip tightening on the wheel, you feel your blood pressure rise, you hear the squeal of your brakes, and you notice the expression on the face of the other driver as he pulls in front of you and quickly looks away. Time for our third rung. Ever since you were young, your parents taught you the importance of waiting in line and taking your turn. You live and die by the rule of first come, first served. And now this guy has just stolen your spot. What gives? Up to the fourth rung we go. Watch closely as our assumptions take over and our story creates.