Brian Greene is perhaps the best-known proponent of superstring theory, the idea that minuscule strands of energy vibrating in a higher dimensional space-time create every particle and force in the universe.

Why you should listen

Greene, a professor of physics and mathematics at Columbia University, has focused on unified theories for more than 25 years, and has written several best-selling and non-technical books on the subject including The Elegant Universe, a Pulitzer finalist, and The Fabric of the Cosmos—each of which has been adapted into a NOVA mini-series. His latest book, The Hidden Reality, explores the possibility that our universe is not the only universe.

Greene believes science must be brought to general audiences in new and compelling ways, such as his live stage odyssey, Icarus at the Edge of Time, with original orchestral score by Philip Glass, and the annual World Science Festival, which he co-founded in 2008 with journalist Tracy Day.

What others say

“Greene has a rare gift for explaining the most challenging scientific ideas, and everyone can appreciate his refreshingly insightful explanations.” — Jennifer Birriel in Astronomy

Brian Greene’s TED talks

Brian Greene on the TED Blog
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Live from TED2014

Retrospect: The speakers in session 2 at TED 2014

March 18, 2014

This year, TED turns 30. It’s a big, round anniversary — the kind that brings with it a welcome moment of reflection. In this session, we look backward and see how far the world has come in the past three decades. These speakers turn back the clocks and offer bold new ways to think about […]

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Science

The multiverse in three parts: Brian Greene at TED2012

February 28, 2012

Photo: James Duncan Davidson Superstring theorist and physicist and the co-founder of the World Science Festival, Brian Greene splits his visually rich, action-packed talk into three distinct sections, all in the name of convincing us of the existence of the multiverse, the possibility that way beyond the earth, the milky way, we’ll find that our universe is part of […]

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Quotes from Brian Greene

Einstein comes along and says, space and time can warp and curve, that’s what gravity is. Now string theory comes along and says, yes, gravity, quantum mechanics, electromagnetism — all together in one package, but only if the universe has more dimensions than the ones that we see.
Brian Greene
TED2005 • 3M views Apr 2008
Fascinating, Informative
We are living through a remarkably privileged era, when certain deep truths about the cosmos are still within reach of the human spirit of exploration.
Brian Greene
TED2012 • 2.2M views Apr 2012
Fascinating, Informative
Sometimes nature guards her secrets with the unbreakable grip of physical law. Sometimes the true nature of reality beckons from just beyond the horizon.
Brian Greene
TED2012 • 2.2M views Apr 2012
Fascinating, Informative