The Fermi Paradox — Where Are All The Aliens? (1/2)

The Fermi Paradox — Where Are All The Aliens? (1/2)


Are we the only living things in the entire universe? The observable universe is about 90 billion light years in diameter. There are at least one hundred billion galaxies, each with one hundred to one thousand billion stars. Recently, we’ve learned that planets are very common too. And, there are probably trillions and trillions of habitable planets in the universe. Which means, there should be lots of opportunity for life to develop and exist. But where is it? Shouldn’t the universe be teaming with spaceships? Let’s take a step back. Even if there are alien civilizations in other galaxies, there’s no way we’ll ever know about them. Basically, everything outside our direct galactic neighborhood, the so called “Local Group”, is pretty much out of our reach forever, because of the expansion of the universe. Even if we had really fast spaceships, it would literally take billions of years to reach these places, traveling through the emptiest areas in the universe. So, let’s focus on the Milky Way. The Milky Way is our home galaxy. It consists of up the four hundred billion stars. That’s a lot of stars, roughly ten thousand for every grain of sand on earth. There are about twenty billion sunlike stars in the Milky Way, and estimates suggest that a fifth of them, have an earth sized planet in it’s habitable zone, the area with conditions that enable life to exist. If only zero point one percent of those planet harbor life, there would be one million planets with life in the milky way. But wait, there’s more. The Milky Way is about thirteen billion years old. In the beginning, it would not have been a good place for life, because things exploded a lot. But after one to two billion years, the first habitable planet was born. Earth is only four billions years old, so there have probably been trillions of chances for life to develop on other planets in the past. If only a single one of them had developed into a space traveling super civilization, we would have noticed by now. What would such a civilization look like? There are three categories. A type one civilization would be able to access the whole energy available on its planet. In case you are wondering, we are currently around zero point seven three on the scale, and we should reach type one sometime in the next couple hundred years. Type two would be a civilization capable of harnessing all of the energy of its home star. This would require some serious science fiction, but it is doable in principle. Concepts like the Dyson Sphere, a giant complex surrounding the sun, would be conceivable. Type three is a civilization that basically controls it’s whole galaxy and its energy An alien race this advanced would probably be godlike to us. But why should we be able to see such an alien civilization in the first place? If we were to build generation spaceships that could sustain a population for around one-thousand years, we could colonize the whole galaxy in two million years. Sounds like a long time, but remember, the milky way is huge. So, if it takes a couple of million years to colonize the entire galaxy, and there are possibly millions, if not billions of planets that sustain life in the milky way, and these other life forms have had considerably more time than we’ve had, then, where are all the aliens? This, is the Fermi Paradox, and nobody has an answer to it. But we do have some ideas. Let’s talk about filters. A filter in this context represents a barrier that is really hard for life to overcome. They come in various degrees of scary. One: There are Great Filters and we’ve passed them. Maybe it is way harder for complex life to develop then we think. The process, allowing life to begin, hasn’t yet been completely figured out, and the conditions required may be really complicated. Maybe in the past, the Universe was way more hostile, and only recently things have cooled down to make complex life possible. This would also mean that we may be unique, or at least one of the first, if not the first civilization in the entire Universe. Two: There are Great Filters and they are ahead of us. This one, would be really really bad. Maybe life on our level exists everywhere in the Universe but it gets destroyed when it reaches a certain point, a point that lies ahead of us. For example, awesome future technology exists, but when activated, it destroys the planet. The last words of every advanced civilization would be: “This new device will solve all of our problems, once I push this button!” If this is true, then we are closer to the end then the beginning of human existence. Or, maybe there is an ancient type three civilization, that monitors the universe, and once a civilization is advanced enough, it gets eliminated, in an instant. Maybe there is something out there, that it would be better not to discover. There is no way for us to know. One final thought: maybe we are alone. Right now, we have no evidence that there’s any life besides us. Nothing. The Universe appears to be empty and dead. No ones sending us messages, no one answering our calls. We may be completely alone, trapped on a tiny moist mud ball in an eternal Universe. Does that thought scare you? If it does, you are having the correct emotional reaction. If we let life on this planet die, perhaps there would be no life left in the Universe. Life would be gone, maybe forever. If this is the case, we just have to venture to the stars and become the first Type Three civilization, To keep the delicate flame of life existing, and to spread it until the universe breathes its final breath, and vanishes into oblivion. The universe is too beautiful not to be experienced by someone. This video was made possible by your support. It takes at least 200 hours to make one of our videos, and thanks to your contributions on Patreon, we are slowly able to do more and more of them. If you want to help us out, and get your own personal bird for example, check out the Patreon page.

100 thoughts on “The Fermi Paradox — Where Are All The Aliens? (1/2)

  1. How come whenever we ask about possible life in the universe we immediately assume it’s uber intelligent beings far beyond our comprehension??

  2. Human a type 3 civilisation?
    Are you aware of the state we are in right now, won't even reach type one I'm calling it.

  3. "Maybe there is something out there that it would be better not to discover" I bet this is probably the way it goes
    If there is no civilizations we've wasted all that time and resources looking, and if there is who's to say they would be friendly, either way it would probably send a lot of religious groups into a panick

  4. My math could be horribly wrong but he said there’s 400,000,000,000 stars in the galaxy, roughly 10000 for every grain of sand on earth. That equates to 40,000,000 grains of sand on earth. So what he’s saying is that there are about as many people living in Tokyo as there are grains of sand on earth? Seems off

  5. The answer is simple . The universe is even bigger than you think . It’s so huge that even though there may be life out there somewhere, they would never run into us and we will never run into them . The chances are just too small because of how small the earth is compared to the rest of the universe .

  6. Me:aliens are Real!
    Mom:ım 35 ı dont see any one.
    Me:wach thıs.
    Mom:it not Real.

    3005:(next mom)alians are Real
    3005:(next me)they not
    (Me see alian)owwwww a big puppy!

  7. “Two possibilities exist: either we are alone in the Universe or we are not. Both are equally terrifying.” – Arthur C. clarke

  8. My grandpa was scanned by an UFO. It burned a circle on the ground. I'm from Poland and that happend about 20yrs Ago. My aunts also were here. Sorry for my bad English.

  9. The fermi paradox cannot even be classified as a paradox, it is simply an idea. An example of a paradox would be this, you have an acid that will dissolve everything, what do you store it in. That is an example of a paradox. When thinking about life on other planets we have to realize that the space between celestial bodies is very large. Even if we could communicate with a planet in the nearest galaxy using the latest technology we have. Our conversations would take almost 200 years to be able to even respond to each other. Of course there is intelligent life on other planets. But who knows they could be so far away they may as well not exist to us and vice versa.

  10. I’m sure tho that there is life on other planets but the government just hides it because it would cause massive confusion among the masses

  11. Why does everyone assume that technology would be linear? Perhaps a type 3 society never discovered electricity? Who's to say that ALL technology produces radio waves that we can detect? Also a radio wave is much like a yell from a person. It dissapates over distance as it spreads. At such distances no broadcast could be discerned from background radiation. Maybe background radiation IS aliens communicating? Also your forgetting relativity. A spaceship traveling at lightspeed would actually appear as radiation to us.

  12. Who else was tripping out? Getting this realization. It has always been there but we never really pay attention to it. Its weird.

  13. This Fermi Paradox is really dumb. It really amazes how can supposedly smart people not realize the obvious. Life is rare, maybe very rare, but it exists ALL OVER the universe. Reason why humans can't detect the presence of aliens from other planets is due to the VERY LOW density of life in the universe. This means the probability of two distinct civilizations, each living on its own planet, being next to each other is close to zero (but not zero). This means that somewhere in the universe there must be two different civilizations living within the reach of each other (at times in the same solar system), and they have been made aware of each other's existence. This also means that the average distance between two ET civilizations is very large, perhaps into the thousands of light years, maybe millions of light years, maybe even more, making their contact very difficult, if not impossible. A distance of a 1000 ly in outer space is almost impossible to traverse unless tricks from Science Fiction books are possible (wormholes, faster than light travel, teleportation, eternal life, anaerobic and radiation resistant life forms, etc.). They will never meet each other in person, maybe they will detect each other's radio waves if they're not that far apart.

  14. The Fermi Paradox is a misnomer, it's definitely not a paradox, but just a hypothesis, like the Riemann Hypothesis (which is actually a conjecture.)

  15. One possibility is that, in reality, there aren't many habitable planets. We are always discovering new factors that must be present for life-bearing planets, and every one is another bunch of worlds that are disqualified. It may be that all those planets and stars, every last one of them, are involved in our OWN world's life, and if that's the case… well, ours would be the only planet that fits the necessary criteria to HAVE life.
    i.e. the initial premise of "there should be plenty of life planets" could very easily be WRONG.

  16. The aliens are just barely past what we can actually see and explore. Aliens: The humans are just barely past what we can see and explore

  17. What if we are in some sort of eternal hell where our species is all alone in an empty universe with nothing but dead planets as a punishment for what we me have done, maybe the universe is teeming with life and we screwed it up or maybe we pissed of the wrong type 3 civilisation. Or maybe I need to stop hitting these blunts.

  18. A igreja de retardados conseguiu retrogar a humanidade em milhões de passos atrás da evolução. Coisa de primatas .

  19. the solution is simple, which scientists will eventually come to understand. you cannot travel the vast distances within a lifetime to find other life. you cannot bend the fabric of space to create a wormhole – too much energy required and far too destructive. space is infinite, we are part of a multi dimensional existence. all we can do is travel between dimensions. the UFOs we see are not inter galactic, they are inter dimensional

  20. I love the fact that the ship shown around the @1:05 mark is the ship from Knights of Sidonia. 😀 Otherwise, great video.

  21. I don’t understand. Even if the universe was teeming with life, how could we possibly see it? We can barely even see the stars the planets orbit on, so why would we be able to see a spaceship? There definitely could be a lot of life, but there’s no way we could know.

  22. That giant duck going around killing planets: I will kill u all imbeciles
    Us: we have an Area 51
    The big boi duck: ok see ya

  23. If there could have been life in the past billions of years and advanced civilizations apered over 50 thousand years on after another there could have been half a bilion civilizations just after stage 3 they past the last filter and went to a diferent universe. Maybey some civilizations found others but why would all of them exist at the same time

  24. 1:14
    400 billions start, roughly 10000 for every grain of sand on earth.
    Which would be 400B/10K = 40 million.
    So, does that mean earth only has 40 million grain of sand.
    India has population more than thrice every grain of sand?
    Am I understanding it wrong??

  25. Humans are barbaric and dangerous. Why would alien make direct contact? If you watch the sky long enough you see ships all the time. People are just too ignorant to look.

  26. People in the future will laugh at us for believing in little green men, as much as we laugh at medievals for believing in trolls and fairies

  27. A pity they don't broadcast videos likes this one in the radio waves from Earth but 90s soap operas and Trump's speaches instead. This one deserves to travel out and tell the aliens what we think of them. Even if it might give someone out there a good laugh.

  28. The council of the ancients watching this video:
    -Sir, they're getting aware, we should kill them.
    -No, I want to see how much they know.
    -But sir
    -Silence, the council has decided to be this way.

  29. I appreciate the fact that the most negative situation, we might really be alone, was mentioned. Being a "Glass Half Full" Person, I still am ready to yield to the possible utter truth.

  30. if there were other life forms we would have noticed by now.. oh WOW. Humanity can hardly see the nose of it's own face.

  31. Do you live in an area where there's that one nutty family who are always smashing their own stuff up, have cars that are all dented up, keep getting drunk and fighting eachother. If you do i'm sure you just keep your distance…. or nip round to the edge of your block to have a laugh at them.
    Humanity is that family…. Why would any other intelligent life ring the bell.

  32. Is it possible to convert our earth or the moon to a spaceship? ( While the life remains still) Maybe with a tiny star acts as the sun

  33. Well this is all just assumption.. someone's idea of what MIGHT be.
    That's the problem with assuming evolution is true. That theory is all based on assumptions and falls apart when they are taken out of the theory.
    God said Eve is the mother of ALL living. He even placed earth in the centre of our universe (cosmic background radiation we've detected shows us this.)
    The only "aliens" we ever experience here from earth are fallen angels.
    Far more evidence for God's Bible than thete is for this evolution fairytale.

  34. I just had a very serious thought. What if there was life on near by planets. I mean think about it. But the government didn’t want us to know because of certain reasons which you could probably guess. I mean we wouldn’t know even if there was. There’s definitely life, there’s not even a doubt, but my theory about the government is probably unlikely idk

  35. 400 billion is Enough stars for 10,000 per grain of sand on earth? The Earth has roughly 7 quintillion 500 quadrillion grains of sand. Maybe my math is fuzzy or something? Those don't seem to add up. Definitely going to have to fact-check these from now on!

  36. I’m betting that life is pretty common , but advanced life is similar to us so infighting keeps it from doing anything significant.

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