Why Can't We See Evidence of Alien Life? | Documentary

This documentary explores some paradoxes surrounding the idea of alien life. We look at the silicon-based life theory, the dark forest theory of interstellar travel, and the possibility of a paradoxical lack of evidence for alien life.

Ultimately, we attempt to answer the question of why we haven't seen evidence of alien life up until this point. We discuss the potential reasons behind this paradox and explore its implications for our understanding of the Universe.
01:00 Interstellar travel
21:48 Paradoxes of the Universe
46:08 Dark Forest Theory
1:03:53 Silicon-based life

[Lotushead.]

It takes 45 minutes until the narrator actually starts to talk about the question posed in the title. Skip ahead to avoid the history of space propulsion and the practical challenges humanity faces when going into space.

[kevinac]

What an odd spot we are at in our evolution. Capable of understanding how futile our dreams are while simultaneously being entranced by them.

[Tater]

I wish I had a time machine...I want to shoot ahead a few thousand years and just get a PEEK of how far mankind goes or falls..dont get me wrong I'm happy to have lived in a time where we are JUST STARTING to explore our own little system...but really wish I would be around to see how far we go 😢

[vincentlussier]

Astounding video! Unbelievable computer graphics, very fitting background music and great narrators voice and he's very knowledgeable and resourceful! Just astounding once again! 🇨🇦👍

[chirilas]

Wow!!! What a great documentary. This mysterious universe, continues to be elusive, so far, for our most brilliants minds. Every single day, we learn something new, which is admirable, but, basic answers about the secrets of black holes, I think, will remain unanswered for a long time, probably, forever. Likewise, making contact with intelligent life, I dare to say, that this won’t be possible as long as our civilization exists.👍

[WasabiDreams]

fantastic documentary. first video i have watched on this channel and subscribed straight away

[RayZavala-Chosen]

This was a very beautiful and thought provoking presentation. I was consumed and enthralled, very good work.

[whiteycat]

Why the hell are you under 100k subscribers?? This video is top class..

[ESport]

I'll be happy living out my entire life on this planet!

[Novaximus]

Where did you guys get the image for the thumbnail of this video? I think it's awesome and would love to have that print on a T Shirt

[joeshmoe]

i really enjoy the narrator, feels like im listening to a friend not a pompus professor
great presentation

[vermontvermont]

Imagine if we came together as one world. Used our minds to figure out how to explore the galaxy.

[drewsarkisian]

Time is always left out of these discussions. Why do we think that intelligent life has to overlap in the same time period as our own existence?

[Matthew]

What an incredible piece of work! I read a book with a similar theme, and it left me in awe. "Game Theory and the Pursuit of Algorithmic Fairness" by Jack Frostwell

[mikeseaman]

Your vedio simply blew my mind. Thank you

[Hawkmoon]

People today mostly grew up with Star Trek and Star Wars and just for some reason assume this will be possible some day. We have a hard time understanding the huge distances within our solar system. I doubt most of us can appreciate the distance involved with interstellar travel. It will most likely never happen, why leave when you can’t be sure what is at your destination and you already have huge amounts of resources within theoretically possible distances within your solar system? I believe intelligent life could be out there but it doesn’t matter because they will never attempt physical contact.

[edwardhinton]

Utterly, utterly deadly and hostile. Distances beyond the human imagination. We will never leave the solar system as long as we are made of flesh. Edit: If the galaxy was the size of the USA then our sun would be the size of a red blood cell. A reminder of the unimaginable scale and distances we are talking about.

[Eye_Exist]

It's a mere open question with so many contributing factors to the solution it doesn't even have real implications to the life in the universe.

1) as intelligence is only one of many survival traits its evolution is not granted on a living planet. this alone narrows the multi-planet civilizations into minimum and also limits their technological development due to time potential of the single home planet
2) all species evolve into the specific conditions of their planet, meaning that any migration to other planets and stars will always require full scale terraforming to be possible, which is a major technological step that most of the intelligent life probably won't reach (we haven't)
3) the life expectancy of a civilization might not be very long on a cosmic scale, narrowing down the amount and level of technological civilizations born and the chance they spread to other systems
4) the obvious vast distances of space. the distances are so massive it narrows down the spreading potential of the civilizations again into a fraction of the already small. this also means that those few civilizations who reach this level are bound to spread absurdly slowly across the galaxy, and probably never be able to spread onto another galaxies
5) the space is probably absolutely filled with small space gravel (leftover from planetary collisions and formations) that's nearly impossible to shield but capable of annihilating any unshielded spaceship colliding onto it at traveling speeds. this is especially true inside the solar systems, greatly reducing the amount of civilizations to ever spread out to the stars, as any collision will end an entire colony
6) any radio and similar wave signs of a civilization is minuscule at the cosmic scale, meaning the signs will get lost and distorted to the sheer volume of the background noise of space, and also probably also weakened to nonexistence by the collisions with all the clouds and other matter filling the space. it is also undefined what kind of wave trace should a civilization leave at its different stages of technological development, meaning we don't really even know what we are looking for
7) only technological civilizations give any detectable radio or similar wave trace of themselves to the space, ruling out literally 99, 999...% of all life in the universe. while very high concentrations of life technically can be detected via telescopes, we have just barely discovered this technology ourselves and are only starting to study the exoplanets for traces of possible life. and the possibilities of all the different signs a life could leave in its planets trace is not defined, nor is it said that all life will ever effect their planet so much its visible to space.

and these are just from the top of my head. it has literally so many contributing factors and solutions that fermi paradox being called a paradox by anyone actually studying life has to be either ideological or paid opinion.

[DennisConnor-wclm]

Also in my opinion I think the governments of the entire world need to actually cooperate and genuinely work together

[gary]

If we find life in our solar system. Then we must arrive at the conclusion life will evolve whenever the conditions are favorable. As most stars have planetary systems we have to face the fact life could be widespread throughout our galaxy and beyond. The vast distances between the stars may result in mankind never to be in contact with an alien species...