What is Big Think?  

We are Big Idea Hunters…

We live in a time of information abundance, which far too many of us see as information overload. With the sum total of human knowledge, past and present, at our fingertips, we’re faced with a crisis of attention: which ideas should we engage with, and why? Big Think is an evolving roadmap to the best thinking on the planet — the ideas that can help you think flexibly and act decisively in a multivariate world.

A word about Big Ideas and Themes — The architecture of Big Think

Big ideas are lenses for envisioning the future. Every article and video on bigthink.com and on our learning platforms is based on an emerging “big idea” that is significant, widely relevant, and actionable. We’re sifting the noise for the questions and insights that have the power to change all of our lives, for decades to come. For example, reverse-engineering is a big idea in that the concept is increasingly useful across multiple disciplines, from education to nanotechnology.

Themes are the seven broad umbrellas under which we organize the hundreds of big ideas that populate Big Think. They include New World Order, Earth and Beyond, 21st Century Living, Going Mental, Extreme Biology, Power and Influence, and Inventing the Future.

Big Think Features:

12,000+ Expert Videos


Browse videos featuring experts across a wide range of disciplines, from personal health to business leadership to neuroscience.

Watch videos

World Renowned Bloggers


Big Think’s contributors offer expert analysis of the big ideas behind the news.

Go to blogs

Big Think Edge


Big Think’s Edge learning platform for career mentorship and professional development provides engaging and actionable courses delivered by the people who are shaping our future.

Find out more

The Legacy of September 11

The Big Idea for Tuesday, September 11, 2012

Service is expressed in numerous ways. Eric Greitens made the decision to join the Navy SEALs, where he learned the value of devoting himself to a greater cause.

While SEALs represent an extraordinary commitment to service, Greitens says that the true legacy of the events of September 11, 2001 and what followed was that Americans came together. As the nation still heals, Greitens argues that all Americans can learn from the Navy SEALs and commit themselves to a higher purpose. 


  1. 1 What We Can All Learn From Navy SEALs
    Jonathan Fowler and Elizabeth Rodd Big Think TV
  2. 2 Guarding the Fallen Towers
    Jason Christopher Hartley
  3. 3 The Intellectual Life of a Navy SEAL
    Lea Carpenter Think Tank
  4. 4 Is bin Laden Dead? The Burden of Proof in the Fog of War
    Daniel Honan Think Tank

The Legacy of September 11

Newsletter: Share: