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: A friend asked me to post this question here, because he cannot connect right now...

    Dr. Carroll: I wanted to ask you about the famous "Drake equation" to calculate the number of intelligent civilizations in the Universe. The number that results from the equation is very arbitrary because it depends on many unknown factors (at least at the time Drake presented it and Carl Sagan mentioned it in Cosmos). Do you know if there is any new data that can help us fine-tune the values that we give each of the variables so that they can be more accurate with reality?


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