Summary of Not Knowing

Looking for the book?
We have the summary! Get the key insights in just 10 minutes.

Not Knowing book summary
Start getting smarter:
or see our plans




  • Innovative
  • Applicable


Many people will find this book a bit odd, due to its style and content. The authors hope so. Throughout the book, different fonts, different-colored pages and startling design choices force readers to change perspectives. These graphic disunities metaphorically underscore the need for new viewpoints and curiosity. Consultants Steven D’Souza and Diana Renner want to inspire. They draw on myriad disciplines to illustrate the necessity and value of not knowing. getAbstract recommends their entertaining treatise to anyone seeking new routes to knowledge, creativity, spirituality and greater productivity.

About the Authors

Educator and executive coach Steven D’Souza also wrote Made in Britain and Brilliant Networking. Diana Renner directs the Not Knowing Lab, a consulting practice.



Knowing Is Dangerous

Contemporary culture tells you that knowledge is good. As more people become knowledge workers who “think for a living,” their income depends on what they know. “Hard-wired” biological rewards in your brain celebrate certainty. If you feel uncertain or have to wait for answers in an ambiguous situation, your brain treats that edginess as a dangerous circumstance. It seeks certainty and order. If it doesn’t find them, it will create them.

Knowledge has drawbacks. Most people suffer from biased self-perceptions. You may see yourself as “above average” and be overconfident about how much you know. Up to 94% of all professors think their work is better than average. Surgeons in training trust their diagnoses more than they should, and clinical psychologists think their predictions are more accurate than they are. People in these industries must avoid overconfidence.

Training in a field may blind you to information that comes from outside of it. Specialized training makes it hard to think about your specialty in simple terms or to explain it simply. People who learn a field’s specialized language wield it to appear knowledgeable even when they...

More on this topic

Customers who read this summary also read

Leadership Unchained
The Alter Ego Effect
The Psychology of Money
The Power to Change
On the Brink of Everything
On Grand Strategy

Comment on this summary