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Avi Loeb: Aliens, Black Holes, and the Mystery of the Oumuamua | Lex Fridman Podcast #154

Lex Fridman · Youtube · 15 HN points · 4 HN comments
HN Theater has aggregated all Hacker News stories and comments that mention Lex Fridman's video "Avi Loeb: Aliens, Black Holes, and the Mystery of the Oumuamua | Lex Fridman Podcast #154".
Youtube Summary
Avi Loeb is an astrophysicist at Harvard. Please support this podcast by checking out our sponsors:
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EPISODE LINKS:
Extraterrestrial (book): https://amzn.to/39xdnkT
Avi's Website: https://astronomy.fas.harvard.edu/people/avi-loeb

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OUTLINE:
0:00 - Introduction
2:31 - Are we alone in the universe?
6:46 - Consciousness
11:23 - Sending digital copies of humans to space
16:01 - Oumuamua
38:04 - Alien space junk
42:03 - What do aliens look like?
59:21 - Drake equation
1:00:23 - Industrial polution from aliens
1:12:15 - UFO sightings
1:20:11 - How long will human civilization last?
1:22:51 - Radio signal from Proxima Centauri
1:26:12 - Breakthrough Starshot project
1:29:11 - Space race
1:34:22 - Human space exploration
1:39:38 - Social media is a threat to society
1:44:26 - Are humans ready for discovering an alien civilization?
1:48:38 - Mayans used astrology to wage war
1:49:53 - Black holes
2:08:43 - Stephen Hawking
2:12:21 - Grigori Perelman
2:16:46 - Theory of everything
2:23:45 - Dark matter
2:26:28 - Advice for young people
2:29:32 - Memories of my father and mother
2:34:01 - Existentialism
2:36:15 - Mortality
2:38:49 - Meaning of life

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Hacker News Stories and Comments

All the comments and stories posted to Hacker News that reference this video.
He has an interview with Lex Fridman here: https://www.youtube.com/watch?v=plcc6E-E1uU

I haven't listened to the whole thing, but he seems to think that aliens visiting our solar system is likely enough that it makes sense to look for. He falls short of the confident certainty I usually expect from cranks though, he's talking about investigating possibilities. I think he's eccentric, but I wouldn't call him a crank.

There's a good interview with Avi Loeb on the Lex Fridman podcast about this very topic. His actual argument is fairly compelling and doesn't really sound sensational at all, IMO.

https://www.youtube.com/watch?v=plcc6E-E1uU

The author of this article has been on several podcasts including Lex Fridman's, where he has discussed these issues further: https://www.youtube.com/watch?v=plcc6E-E1uU .
Lex Fridman had a really good interview with Avi Loeb about Oumuamua, among other things, about a week ago. Highly recommend!

https://www.youtube.com/watch?v=plcc6E-E1uU

dfsegoat
Having watched the vid, he goes into specifics of why he thinks Oumuamua is 'not a rock' based on geometry and reflectivity. It was quite fascinating.
strogonoff
I was a bit worried when interviewer ventured into the topic of UFO sightings; thankfully Avi’s response was quite sober.
TacoToni
Fantastic episode.
libertine
Very interesting, and it gives a really good highlight of the whole Oumuamua event, which got a bit distorted in the media.

The things that stood out were:

- Our range of vision to spot such objects is narrow;

- We don't have much "resolution" of the object, and we have to work with limited data;

- that fact that we managed to get that data was already really good and it's enough to theorize about a lot of stuff, but not enough to tell precisely what it was.

- the object behavior as it approached the sun doesn't match the type of object that we perceived at the beginning;

- the object could have been stationary;

Jan 15, 2021 · 2 points, 0 comments · submitted by dogma1138
Jan 14, 2021 · 13 points, 0 comments · submitted by jger15
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