How Things Spread : TED Radio Hour What makes an idea, a brand, or a behavior catch fire? This hour, TED speakers explore the mysteries behind the many things we spread: laughter and sadness, imagination, viruses and viral ideas.

TED Radio HourTED Radio Hour

Life's biggest questions, explored.

What makes one idea spread over another? iStock hide caption

toggle caption
iStock

What makes one idea spread over another?

iStock

How Things Spread

What makes an idea, a brand, or a behavior catch fire? This hour, TED speakers explore the mysteries behind the many things we spread: laughter and sadness, imagination, viruses and viral ideas.

Nicholas Christakis at speaking at TED in 2010. James Duncan Davidson/TED hide caption

toggle caption
James Duncan Davidson/TED

Nicholas Christakis: How Do Our Social Networks Affect Our Health?

  • Download
  • <iframe src="https://www.npr.org/player/embed/468881321/469088010" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Historian Yuval Harari speaking at TEDGlobalLondon. James Duncan Davidson/TED hide caption

toggle caption
James Duncan Davidson/TED

Yuval Harari: Why Did Humans Become The Most Successful Species On Earth?

  • Download
  • <iframe src="https://www.npr.org/player/embed/468882620/469088402" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

TED Radio HourTED Radio Hour

Life's biggest questions, explored.