Ideas worth spreading

Distant time and the hint of a multiverse

1,850,718 views | Sean Carroll • TEDxCaltech

Cosmologist Sean Carroll attacks -- in an entertaining and thought-provoking tour through the nature of time and the universe -- a deceptively simple question: Why does time exist at all? The potential answers point to a surprising view of the nature of the universe, and our place in it.

Cosmologist Sean Carroll attacks -- in an entertaining and thought-provoking tour through the nature of time and the universe -- a deceptively simple question: Why does time exist at all? The potential answers point to a surprising view of the nature of the universe, and our place in it.

This talk was presented to a local audience at TEDxCaltech, an independent event. TED's editors chose to feature it for you.

Read more about TEDx.

About the speaker

Physicist, cosmologist

See speaker profile

A physicist, cosmologist and gifted science communicator, Sean Carroll is asking himself -- and asking us to consider -- questions that get at the fundamental nature of the universe.

Learn more

About TEDx

TEDx was created in the spirit of TED's mission, "ideas worth spreading." It supports independent organizers who want to create a TED-like event in their own community.

Find a TEDx event near you

This talk was presented to a local audience at TEDxCaltech, an independent event. TED's editors chose to feature it for you.

Read more about TEDx.