131 | Avi Loeb on Taking Aliens Seriously

The possible existence of technologically advanced extraterrestrial civilizations — not just alien microbes, but cultures as advanced (or much more) than our own — is one of the most provocative questions in modern science. So provocative that it's difficult to talk about the idea in a rational, dispassionate way; there are those who loudly insist that the probability of advanced alien cultures existing is essentially one, even without direct evidence, and others are so exhausted by overblown claims in popular media that they want to squelch any such talk. Astronomer Avi Loeb thinks we should be taking this possibility seriously, so much so that he suggested that the recent interstellar interloper `Oumuamua might be a spaceship built by aliens. That got him in a lot of trouble. We talk about the trouble, about `Oumuamua, and the attitude scientists should take toward provocative ideas.

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Abraham (Avi) Loeb received his Ph.D. in plasma physics from the Hebrew University of Jerusalem. He is currently the Frank B. Baird Jr. professor of science at Harvard University. He served as the Chair of Harvard's Astronomy department from 2011-2020. He is Director of the Institute for Theory and Computation of the Harvard-Smithsonian Center for Astrophysics, and Founding Director of Harvard's Black Hole Initiative. He is chair of the Advisory Committee for the Breakthrough Starshot Initiative. His new book is Extraterrestrial: The First Sign of Intelligent Life Beyond Earth.


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Avsnitt(427)

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73 | Grimes (c) on Music, Creativity, and Digital Personae

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72 | César Hidalgo on Information in Societies, Economies, and the Universe

72 | César Hidalgo on Information in Societies, Economies, and the Universe

Maxwell's Demon is a famous thought experiment in which a mischievous imp uses knowledge of the velocities of gas molecules in a box to decrease the entropy of the gas, which could then be used to do ...

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71 | Philip Goff on Consciousness Everywhere

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The human brain contains roughly 85 billion neurons, wired together in an extraordinarily complex network of interconnected parts. It's hardly surprising that we don't understand the mind and how it w...

4 Nov 20191h 34min

70 | Katie Mack on How the Universe Will End

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Cosmologists are always talking excitedly about the Big Bang and all the cool stuff that happened in the 14 billion years between then and now. But what about the future? We don't know for sure, but w...

28 Okt 20191h 23min

69 | Cory Doctorow on Technology, Monopoly, and the Future of the Internet

69 | Cory Doctorow on Technology, Monopoly, and the Future of the Internet

Like so many technological innovations, the internet is something that burst on the scene and pervaded human life well before we had time to sit down and think through how something like that should w...

21 Okt 20191h 17min

68 | Melanie Mitchell on Artificial Intelligence and the Challenge of Common Sense

68 | Melanie Mitchell on Artificial Intelligence and the Challenge of Common Sense

Artificial intelligence is better than humans at playing chess or go, but still has trouble holding a conversation or driving a car. A simple way to think about the discrepancy is through the lens of ...

14 Okt 20191h 22min

67 | Kate Jeffery on Entropy, Complexity, and Evolution

67 | Kate Jeffery on Entropy, Complexity, and Evolution

Our observable universe started out in a highly non-generic state, one of very low entropy, and disorderliness has been growing ever since. How, then, can we account for the appearance of complex syst...

7 Okt 20191h 12min

66 | Will Wilkinson on Partisan Polarization and the Urban/Rural Divide

66 | Will Wilkinson on Partisan Polarization and the Urban/Rural Divide

The idea of "red states" and "blue states" burst on the scene during the 2000 U.S. Presidential elections, and has a been a staple of political commentary ever since. But it's become increasingly clea...

30 Sep 20191h 52min

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