Two heads may be better than one. But what about three or more? A new study shows that chimpanzees excel at complex tasks when they work in groups, and their accumulated knowledge can even be passed from one generation to the next. 

But group-think also can be maladaptive. When humans rely on knowledge that they assume other people possess, they can become less than rational.

Find out why one cognitive scientist says that individual thinking is a myth. Most of your decisions are made in groups, and most derive from emotion, not rationality.

Also, why we know far less than we think we do. For example, most people will say they understand how an everyday object like a zipper works, but draw a blank when asked to explain it. 

Plus, why we have a biological drive to categorize people as “us” or “them,” and how we can override it.   

Guests: 

Segments:

Part 1: Laurance Doyle / Ape Aping 
Part 2: Steve Sloman / Collective “Knowledge”
Part 3: Robert Sapolsky / Us vs. Them

Descripción en español

Originally aired July 3, 2017

Podcast also available on PocketCasts, SoundCloud, Spotify, Google Podcasts, Apple Podcasts, and RSS.

2026 Webby Award Nominee
for our three part series on the 20th anniversary of Hurricane Katrina

Big Picture Science is an immersive radio show and podcast that reveals the unexpected connections in science.

Our Skeptic Check episodes take a critical look at extraordinary science claims and pseudoscience.

Don’t settle for a science snapshot. Get the big picture. 

Hosted By

Molly Bentley Executive Producer and Co-Host, Big Picture Science  

Seth Shostak Producer and Co-Host, Big Picture Science
Senior Astronomer, SETI Institute

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