TED Conversations

Sean Carroll

theoretical physicist,


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LIVE TED Conversation: Join TED Speaker Sean Carroll

LIVE conversation with cosmologist Sean Carroll, TEDxCaltech Speaker and author of From Eternity to Here: The Quest for the Ultimate Theory of Time.

The conversation will open at 4pm (Eastern Standard Time), May 19, 2011. Sean is on vacation in Las Vagas, and will join us from his hotel room there to discuss the cosmos, the nature of time, and the science of poker.


Closing Statement from Sean Carroll

Thanks for participating, everyone! I hope some light was shed. It's been a pleasure chatting with the TED community.

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  • May 19 2011: Hi professor,
    Is it possible to multiverse to be seen as many universes, each one includes another rather than separated ones, I think in such situation the accelerated expending can be explained by the impact of a bigger universe on the smaller one that is included in it?
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      May 19 2011: When cosmologists talk about the "multiverse" these days, they are usually (not always) thinking of just a really big universe, in which different regions have different physical characteristics. It's a confusing terminology, but has become somewhat standard.

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