Fermi's Paradox and the Psychology of Galactic Empires | Matthew O´Dowd | TEDxTUWien

We now know that the Galaxy is full of potentially habitable planets. So why do we see no signs that any civilizations have come before us? Matt O'Dowd, astrophysicist and host of PBS Space Time, explains why Fermi's paradox really is so surprising, and he offers a new piece of evidence that may point towards the solution. Astrophysicist Matthew O’Dowd spends his time studying the universe, especially really far-away things like Quasars, super-massive black holes and evolving galaxies. He completed his Ph.D. at NASA´s Space Telescope Science Institute, followed by work at the University of Melbourne and Columbia University. Currently he is a professor at the City University of New York´s Lehman College and an Associate at the American Museum of Natural Historys Hayden Planetarium. Thumbnail © Nadja Niemiec This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx

Why We are Alone in the Galaxy | Marc Defant | TEDxUSF
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Why We are Alone in the Galaxy | Marc Defant | TEDxUSF

Is there consciousness beyond the brain? | Philip Goff | TEDxNewEngland
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Is there consciousness beyond the brain? | Philip Goff | TEDxNewEngland

Have you ever imagined how interstellar travel could work? | Ryan Weed | TEDxDanubia
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Have you ever imagined how interstellar travel could work? | Ryan Weed | TEDxDanubia

A Theory You've Never Heard Of | Michael Robinson | TEDxUniversityofHartford
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A Theory You've Never Heard Of | Michael Robinson | TEDxUniversityofHartford

Extraterrestrials - Why They're Almost Certainly Out There... | Chris Crowe | TEDxJohnLyonSchool
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Extraterrestrials - Why They're Almost Certainly Out There... | Chris Crowe | TEDxJohnLyonSchool

Disappearance of a 50.000 Egyptian Army | Olaf Kaper | TEDxEde
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Disappearance of a 50.000 Egyptian Army | Olaf Kaper | TEDxEde

Is Time Travel, Especially Into the Past Possible? | Matt Szydagis | TEDxSchenectady
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Is Time Travel, Especially Into the Past Possible? | Matt Szydagis | TEDxSchenectady

Why I changed my mind about nuclear power | Michael Shellenberger | TEDxBerlin
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Why I changed my mind about nuclear power | Michael Shellenberger | TEDxBerlin

UFOs and Aliens – What Science Says | Donald Prothero | TEDxResedaBlvd
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UFOs and Aliens – What Science Says | Donald Prothero | TEDxResedaBlvd

What if Everything You Know is Wrong: Bob McDonald at TEDxVictoria 2013
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What if Everything You Know is Wrong: Bob McDonald at TEDxVictoria 2013

Supermassive black holes: most powerful objects in the universe | Martin Gaskell | TEDxMeritAcademy
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Supermassive black holes: most powerful objects in the universe | Martin Gaskell | TEDxMeritAcademy

Where Are All The Aliens? | Tim O'Brien | TEDxOldham
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Where Are All The Aliens? | Tim O'Brien | TEDxOldham

How we found out evolution is true: John van Wyhe at TEDxNTU
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How we found out evolution is true: John van Wyhe at TEDxNTU

How To Trick Your Brain Into Falling Asleep | Jim Donovan | TEDxYoungstown
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How To Trick Your Brain Into Falling Asleep | Jim Donovan | TEDxYoungstown

Beyond the singularity: The search for extraterrestrial technologies | Andrew Siemion | TEDxBerkeley
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Beyond the singularity: The search for extraterrestrial technologies | Andrew Siemion | TEDxBerkeley

Cosmology and the arrow of time: Sean Carroll at TEDxCaltech
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Cosmology and the arrow of time: Sean Carroll at TEDxCaltech

Why an ancient Mesopotamian tablet is key to our future learning | Tiffany Jenkins | TEDxSquareMile
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Why an ancient Mesopotamian tablet is key to our future learning | Tiffany Jenkins | TEDxSquareMile

The Exploration and Colonization of Mars: Why Mars? Why Humans? | Dr. Joel Levine | TEDxRVA
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The Exploration and Colonization of Mars: Why Mars? Why Humans? | Dr. Joel Levine | TEDxRVA

Is There a Fifth Dimension?: Arlie Petters at TEDxNCSSM
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Is There a Fifth Dimension?: Arlie Petters at TEDxNCSSM

The Unusual Earth Orbit Circling Above Our Ancient Past | Roger G. Gilbertson | TEDxColoradoSprings
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The Unusual Earth Orbit Circling Above Our Ancient Past | Roger G. Gilbertson | TEDxColoradoSprings