Though we have definitely been looking, humanity hasn't found any evidence of other civilizations communicating out there in the universe. Yet, this seems improbable given that there are billions and billions of stars that might evolve life. The Fermi paradox asks, where is everyone? The Drake equation tries to answer it.

There are many possible explanations for this great silence. In this video, we discuss the Great Filter theory and the Dark Forest theory. It may also be intrinsic in how we are looking for alien civilizations, we might be anthropomorphizing them too much.

We can infer a lot about possible civilizations based on our existence and the fact that we can't see anyone. Humanity evolved very early on during the universe's lifetime, about 0.1% of the way through the lifetime of habitable planets. We go through one possible explanation for this, the grabby aliens theory. We also talk about the pressures that might make alien civilizations expand much more slowly than we expect, which also makes them harder to run into.

It is completely possible that there are AI civilizations out there that we haven't run into yet.

#seti #alien #life


[Discussion] Why isn't space swarming with AI from another civilization's singularity?
  / discussion_why_isnt_space_swarming_with_ai...  

Why Don't We See Robotic Civilizations Rapidly Expanding Across the Universe?
https://www.universetoday.com/164349/...

What If Humanity Is Among The First Spacefaring Civilizations?
   • What If Humanity Is Among The First S...  

Why We Should NOT Look For Aliens - The Dark Forest
   • Why We Should NOT Look For Aliens - T...  

Cooperative Evolutionary Pressure and Diminishing Returns Might Explain the Fermi Paradox: On What Super-AIs Are Like and Why We Don't See Them
https://sites.google.com/site/danielv...

Alien Minds - Susan Schneider
http://www.datascienceassn.org/sites/...

There could be 36 communicating intelligent civilizations in our galaxy, study says
https://edition.cnn.com/2020/06/15/wo...

The Astrobiological Copernican Weak and Strong Limits for Intelligent Life
https://iopscience.iop.org/article/10...

0:00 Intro
0:26 Contents
0:32 Part 1: Is life out there?
1:04 The Drake equation
1:39 Huge range of possibilities
1:57 Alternatives to the Drake equation
2:12 The Astrobiological Copernican Principle
2:36 At least 36 civilizations in our galaxy
3:08 Civilizations are very far away
3:55 Why alien civilizations will be AI
4:51 Terminology: Postbiological (vs posthuman)
5:23 Part 2: Explanations for silence
5:41 Explanation: The Great Filter
7:00 Explanation: The Dark Forest theory
8:02 The impact of time delays on conflict
8:33 Book recommendation: The Forever War
9:06 Explanation: How we are looking for life
9:48 How to use AI to find alien signals
10:43 Focusing on only one technosignature
11:13 Example: Hawking radiation from black holes
12:07 Part 3: Implications of humanity
12:46 Grabby Aliens theory
13:37 Some civilizations might be grabby
14:30 Half of space is already colonized?
14:53 Slow growth theory
15:44 Example: von Neumann probes
16:36 Link to grabby aliens
16:42 Why superintelligence is not incentivized to spread
17:37 Description of Dyson spheres
18:06 My thoughts
19:32 Conclusion
20:19 Implications from our own existence
21:18 Outro