Is Alien ‘Life’ Weirder Than We Imagine: Who Is Out There?

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Published 2019-02-23
If we want to discover alien life out there in the universe, we first need to figure out where to look—and what we're even looking for. Will it be biological like us? Could it be artificial, or take some other form we haven't yet considered? And how do we find something so fundamentally different from ourselves? In this program, scientists devise plans for searching for beings beyond Earth while they grapple with the very definition of life.

PARTICIPANTS: Lisa Kaltenegger, Caleb Scharf, Susan Schneider, Sara Walker

MODERATOR: Nicole Stott

MORE INFO ABOUT THE PROGRAM AND PARTICIPANTS: www.worldsciencefestival.com/programs/e-t-phone-ho…

This program is part of the BIG IDEAS SERIES, made possible with support from the JOHN TEMPLETON FOUNDATION.

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TOPICS:
- Film about the imaginative search for alien life 00:05
- Introduction to the program by astronaut Nicole Stott 04:45
- Introduction of participants 05:50
- What is the definition of life? 07:09
- How will we find signs of life elsewhere in the universe? 16:21
- What are the parameters for looking for life on other planets? 19:36
- What should the probes on Mars be looking for to find life? 24:58
- The Fermi Paradox, where is everybody? 30:56
- Have aliens avoided humans because we're too boring? 34:41
- Can we use information theory to look for life in the universe? 39:13
- Why is looking for alien life important to humankind? 44:13
- Will life in the future be AI, should we be looking for other AI in space? 46:02
- The "Great Filter" 48:52
- Is artificial intelligence alive? 50:28
- Is evolution the strongest force in the universe, how will it shape the future? 52:13
- What lessons could humankind learn from the successes and failures of other alien species in the universe? 56:58
- Why should we care about finding life elsewhere in the universe? 57:58


PROGRAM CREDITS:

- Produced by John Plummer
- Associate Produced by Laura Dattaro
- Opening film written / produced by John Plummer, animation by Derek Breur
- Music provided by APM
- Additional images and footage provided by: Getty Images, Shutterstock, Videoblocks

This program was recorded live at the 2018 World Science Festival and has been edited and condensed for YouTube.

All Comments (21)
  • @jamescook4881
    Thanks for a video without ads every 15 seconds. Almost as rare as finding intelligent life off planet.
  • I forget who said it but I once heard the universe is not only stranger than we imagine it's stranger than we can imagine
  • @TheChico1332
    I have a feeling that once a civilization has figured out a way to make out into space for the long haul and be able to adapt to its harsh environment they instead opt to just travel indefinitely through out the universe. By doing so, they are not trapped with having to “planet hop” every time they outgrow their environment. If they can figure out a way to harness energy while traversing the universe then it’s probably limitless where they can travel if they wish. It’s my belief that planets are like nests for birds once they figure out they don’t necessarily have to stay in one they fly away to discover the world beyond the nest.
  • @Tarikkb
    Imagine how different they can be , they’re not humans , they may not have emotions , they may not have our logic , they may not even have bodies , it’s just a bit scary but really interesting
  • @mal2ksc
    I like the moments when it feels like we're listening in on a brainstorming session rather than a fairly choreographed set of lectures. I kind of miss that from the earliest years of the WSF, although that can also go off the rails as happened at some previous WSFs. It provides a more intimate feel, a deeper sense of immersion, like we're part of the discussion rather than the target of it.
  • Alien life... Covid-19 has proven we aren’t ready for Alien Life. We fight over toilet paper.
  • @-Gorbi-
    “May be..”. Everything is weirder and more mysterious than we CAN imagine
  • @gunlokman
    If one simply takes into account the 'life' factors we already know, there can be no doubting the existence of much more advanced 'intelligent- life' out there somewhere. In terms of 'evolution' we have only just relatively left the caves. And - if we don't manage to annihilate ourselves within the next one hundred years or so - we too will be exploring the outer reaches of the cosmos. Other 'beings' out there already could easily be in virtually any form we could imagine as intelligent-'life' could evolve in an unlimited number of ways.
  • @Skovidesign
    They deleted the original version in which the host lost her line of thoughts and started talking nonsense around 46 min mark. It was awkward so I kinda I see why they did it. It's edited out in this version. Very glad they put the video back online I really like this panel, the conversation flowed really well. All panel members are passionate about their work and clearly had given a lot of thoughts on the topic. The language they are using and also the way they are expressing themselves is so natural and approachable. It's one of my favorite panel on this channel for sure. Sara Walker is amazing, she truly is on a different level than the rest of us :D
  • With the immense area of the universe I can’t see that we could possibly be the only people or beings
  • @chris_iapetus
    This was stupendous, riveting. Joyful yet cautionary, grand possibilities presented within the practical. Well done.
  • @JBPVFL
    Another issue with viewing these stars and planets that are so far away is the issue of time. We are basically looking into the past at some of these planets that are far away. So seeing precursors of potential habitable planets, that are on planets millions of light years away, could now at this time be as advanced as we are. Our timeframe of viewing things is so small in the grand scheme of things that the opportunities of finding things in the future is very exciting I believe.
  • @adon2424
    I was skeptical that such a profound thesis could be logically discussed. Wonderful information, Brilliant delivery!
  • @WormholeJim
    We can't imagine how weird or even in what way. We can only look at ourslvs and our own world and then project what we see out there in searching for it. So the universe - even our solar system - could be teeming with life without us being able to realize it because we're not able to recognize it. If we didn't know of vira already, likely we would not consider it a lifeform if we encountered it in space but instead see it as a precursor for life.
  • The main problem with nasa and scientist expect alien to be like us physically. They also believe that alien life needs to live on an earth like world.
  • @atiadjt
    Why do people always assume that aliens look like organisms from Earth? What if they look like rocks, what if they are invisible, what if they are made of gas or light?
  • @nala3038
    I haven’t even found evidence of my love life, let alone alien life.
  • @jaganrpillai
    In my opinion, the key word should be cognizant not intelligent. Humans are different from other species not because we are more intelligent but because we are cognizant beings who can collectively imagine a world order and pass on the acquired knowledge from generation to generation.
  • Imagine the possibility that we one day meet aliens and find out they have magical abilities and wands like in Harry potter, that would make one hell of a life plot twist