😂

😅😅

The lesser known but more commonly felt, "Dining Services Paradox".

I truly simple-and elegant-solution. Kudos.

That's OK. Heisenberg still couldn't decide what to order anyway. He was so uncertain he ended trying to turn that into his life principle. True story, probably.

Lol. It's like, why are all our telescopes pointing away from earth looking for intelligent life. Cos there's none here.

Yeah. Problem is if there is life out there they very likely got started much like us and were considered unintelligent in the beginning as well. We're not unintelligent we're just still very young and immature.

@@thewholeeventhorizon But it's also possible that planets exist with such an abundance of raw materials for proteins that it didn't require competition between entities, and yet something else spurred on the evolution that they don't even conceive as to why one organism would prey on another. We might be the stuff of nightmares to them.

@Kunsoo1024 That would inevitably lead to explosive growth of population till there is not enough resources to support population. So, the only way for life on such a planet to survive without violence - to regulate its population, which is done either by violence, or by law restricting reproduction. All of this applies that this life on other planet has reproduction at all. There just couldn't be a planet with unlimited resources. And limited resources lead to limited population. The only way I can see is some kind of genius species, that develops new technologies faster than resources demand grows. So, they leave the planet before demand for resources becomes unsustainable.

😂😂😂😂😂😂

and constantly getting further apart

Let's colonize the galaxy first. Then worry about the universe.

At the rate we are going, we could, and probably will, colonize the galaxy sometime within the next million years. That is without faster than light travel. It took us about 4 billion years to become sentient. The oldest star in the galaxy is about 13 billion years old. There are an estimated 100 to 400 billion stars in the galaxy. Quite a few of them had a head start on us. Apparently, NONE of them developed a civilization that spread throughout the galaxy. THAT is the FERMI paradox. It is not about why we haven't found life. It is about why we aren't neck deep in extraterrestrial life. If 1 in every 100 million stars had developed an advanced civilization, there would be about 2,000 of them in our galaxy. Intelligent life may be that rare. It also may be that there is a reason it didn't spread throughout the galaxy. We just don't know.😊

The moon is weird, just saying, I'm some nutbar who says things like, the Fermi Paradox was "mostly solved" by testimonies like Asimov on Astronomy (1974), or that "the Moon may have implications for that one chunk of the Drake Equation." I'm not opposed to Boltzmann Brains forming in the cores of stars but it seems uncommon. Leaving a star system is daring, but leaving galaxies seems to have vastly decreased returns. You only have to go so far to get out of a family dinner. Perhaps aliens are holed up in holographic storage awaiting a chance to fix the next universe at the get-go -- I wouldn't be surprised if this is NOT the case -- but yeah... distance and time-slash-rare circumstances looks like the deal to me.

People always bring the vastness of the universe for the non findings. We can't even get a signal in our own galaxy. What's the universe got to do with it?

I swore at a mosquito the other day.

​@@marflitts genius!

Yet people study insects. Some people are fascinated by insects. So while an alien intelligence might not view us as intellectual peers, they might still be intrigued by us all the same.

Bruh. In 268 years from now we will find our first exoplante inhabited by a species that'll be in its caveman days and OUR ENTIRE PLANET WOULD BE UTTERLY FASCINATED BY IT. Get real.

While technically not an insect, I did apologize to a spider yesterday.

Yeah, with binoculars from miles away

That is due to the expansion of Spacetime shifting light from unimaginably distant objects into... unintelligible garbage, or to the point it's nearly impossible to detect.

Like being an ant. Standing on a leaf. Perched atop a tidal wave.

​@@Dianasaurthemelonlord7777 : No, the expansion of spacetime is insignificant within a galaxy.

Perhaps. And? Is there a point you were trying to make?

dude...

So we are actually the Ancients... I knew I was born too soon.

Possibly. But I more support the theory which states exactly opposite. We’re relatively young civilization. Other intelligent species are likely far ahead of us. Or the sheer vastness/immensity of outer space is too great for any intelligent species to communicate effectively with another.

There are numerous 'accidental' circumstances that have made the evolution of complex life on Earth possible, the presence of water and key elements are just some of them ... The very organisation of the solar system, with large gaseous outer planets acting as a gravitational barrier that minimises the amount of space debris impacting the earth .... the temperature on Earth goverened by its proximity to the Sun ... the Earth's magnetic core protecting the atmosphere from solar raditaion. When you think of all of the things that needed to be in place for it to be possible for the planet to develop and sustain life over periods of time that allow complex organisms to develop ... well, you begin to think that if life in the Galaxy and the Universe is indeed extremely rare, that should be no great surprise to anyone.

@@Dionysos640 i think about that a lot too. I don't necessarily believe it to be true, but i think most ppl are way too quick in the assumption of "the universe is so vast there HAS to be other life out there". We don't even rly know how the very first life formed, what if it's an unimaginably small chance, and the reason we got so "lucky", is easily explained by the weak anthropic principle?

Thousands of years of war has led to this technology. They need to master this planet first, the Ocean bottoms are vastly unknown and many people still can't read.

In 1924 america probably true do to the education system there.

For sure, magical to become aware of this..

If we don't kill ourselves through war or climate change, then I'm looking forward to new discoveries.

Whatever is wrong with travelling by boat?

You've been dead for quite a while haven't you? How have you managed to keep watching videos in the afterlife?

Yes. Hear here! Your team does such wonderful work. Your channel is one of my favorite channels. Thank you to the entire Cool Worlds Team such thorough and clear explanations. You are truly bringing science to the people. :)

@@darksu6947 There isn't a lot to do here in the afterlife. So I mostly just watch UKposts videos.

Yea it didn't bring anything to the table, they're already here and don't even use radio for communication on their own planet why would they be emitting it

Worth looking at Isaac Arthur's videos on the topic. Far beyond just a listing of facts to be found there!

I don't know how to break this to you, but television was never NOT crap, in terms of teaching anyone anything. It is for entertainment and making money, and virtually nothing else. If it ever gets to the point where science programs on YT aren't entertaining, they will stop, no question about it. They will also stop, meaning die a painful death, when some other medium becomes available that makes it about as interesting as hearing stories around a campfire, unceasingly, for your entire life.

But you forget Game of Thrones! That's an awesome tv series.

​@@MrJdseniorI'd take a decent campfire over the dumpster fire of social media culture any day

@@MrJdsenior Lol, I don't know how to break this to you but if you think television, (or social media), is purely for entertainment or money you probably live in a virtual reality, a fantasy world.

If you feel the need to be needlessly formal, you'd address him as 'Prof. Kipping', which is his more-prestigious / higher-precedence title.

Oh that makes sense...

first!

Nobody I know can really follow, nor appreciate what is being presented in these videos. They want to watch stuff where no thinking is required.

Same principle applies. Yes, the channel will necessarily reach 10 mil. First it has to hit 5, and 3, and 1. Some of us lucky few had to be part of that first sub-mil in order for it to reach 1, then 5, then 10, and so on.

@@brown3394 😁

Amen brother. It'll get there though. There's certain videos that can suck you in regardless of your intelligence level. My partner is nowhere near the level of science nerdiness I'm at... But she still really appreciates the way he can tell a story and how he can make anything mundane be like velvet cheesecake to the ears.

​@@brown3394 Few people understand this. They feel that if a channel is "good," then it should have a similar number of subscribers as other great, well-established channels, "instantaneously."

And also I bet all the billion alien civilizations out there waste their resources and time on toxic useless social media, tiktoks, twitters, instagrams and whatnot.

​@@camilohiche4475PRIMITIVE. PRIMITIVE. PRIMITIVE. Undoubtedly preposterous barbarious PRIMITIVE theory. You will never expand knowledge wise as a race, if you think small. Wake up. You are not told truthfully of actual space or Astronomy generally speaking. The Extraterrestrials that you may have been looking for are everywhere and yes, they know Earth as well, interstellar speaking at least. Peace ✌️

@@camilohiche4475 pleasure worlds

Also if a planet is any larger than earth than rockets become increasingly infeasible for getting into space. At 50% larger than earth (with the same density) rockets could not get you to earth’s orbit.

@@Farazormal1 I still haven't left your mom's orbit

Alcoholics anonymous is probably a more palpable option..

Yeah, alot of people call it a paradox that we see no signs of other civilizations- yet it seems so obvious that there is no way we'd ever be able to with current technology. Artificial EM waves, even all of those ever produced by humanity, are massively overshadowed by cosmic background radiation at extreme distances. Any given signal only has so much raw energy attached to it, and as it spreads out radially that power is gonna decrease dramatically- inverse square law as you said. Even if a signal of ours ever reached another life bearing planet with a technologically advanced civilization, the odds that they'd be able to detect it are functionally zero unless their tech vastly surpasses ours to a fairly incredible degree. To detect such heavily diluted signals amonst the collective radiation of every star in the visible universe is a herculean feat.

Exactly my thoughts!

astrobiologist already a thing?

I'm not an astrobiologist, but my thoughts exactly

I agree! As someone who grew up in a forest just before the Internet, I appreciate the work you do

I mean, he’s talking about possible life forms while standing in the natural world. Talking about life while standing in life. Poetic indeed, but for different reasons

The original 'green screen'.

That’s what my degree is in from Appalachian state university!

Dude that's just a background image.

Haha, this video popped on my UKposts after watching 3 body problem.😄

What a coincidence 😹

That show resurfaced my interest. Lol

Yes I'm here because I'm curious to see what he says the solution to the Fermi Paradox. And I have been looking stuff up related to the 3 Body Problem.

I read the book a little while back.

Sounds like you need a Sleepcore video

Sarcasm? 😂

@@ItsaRomethingeveryday Not at all 🙂

@@MarinCipollina help me to understand

Sleepcore videos feature old retro-futurism like IBM videos, TV company videos, car company videos talking about what they have coming in the future from a 1950s/1960s perspective.. weird, and a bit creepy today, but they'll put you to sleep.. just do a UKposts search.. For instance, in one video, IBM talks about.. putting a computer on an airplane !! (It's a much bigger challenge than simply carrying your MacBook on board..) 😆Great stuff..

😂

Hilarious! 😂😂

Ha! :D

A simple resolution indeed.

Everybody was abducted and being probed by aliens.

Agree, and that includes his version of the 'direct' fermi paradox. It's a naive question, not a paradox.

@@TrueBlueYZnicely put! the universe is likely far bigger than we are capable of understanding “yet” I personally believe once we reach a certain threshold on earth like no war being the main thing if we cant even get on with ourselves how are we gonna react to alien life…… once we hit this point i think they will make themselves known and allow us to come to them as to not create a panic then we could possibly learn of an inter galactic community….. its just as unlikely as it is likely its interesting to at least think about!

Yes, something new for intellectuals to do when they are bored with life.

In comparison. We have searched in such a small area of space. It is the equivalent of looking at a glass of water of the ocean looking for a fish. Now if we consider the short period of time we have been detectable. The odds of us being detected is so slim. It equates to zero in the context of a human lifespan.

Of course that is not true. Carl Sagan set up a testable scientific experiment to search for intelligent, extraterrestrial life. We have conducted that experiment numerous times: Results NEGATIVE. He even wrote a novel about it --- "Contact," in case you haven't read it. In it, he expected alien intelligence to make a point of contacting us rather shortly after radio transmissions reached them. The galaxy crowded with intelligent life Sagan hypothesized has not panned out. YOU simply refuse to accept the results of scientific experiment because it doesn't appeal to what amounts to your religious beliefs. We detected the radio signals of the Big Bang DECADES ago, defining the edge of the known universe. No intelligence other than our own has been detected in that enormous volume. However, if something should turn up ---fine. Call me.

My hunch is that we just haven’t been looking long and hard enough.

Your logic is sound, kevley.

Or maybe our nearest neighboring civilizations may not be advanced enough technologically to go interstellar. They could be in their version of the medieval period, antiquity, great age of sail, etc.

Yeah I don't think we should assume that these aliens would build megastructures have faster-than-light travel or even colonize outside their own solar system much less use radio waves that we would be able to detect. It's like looking out your window not seeing any people and saying there are no people.

i think that most civilizations end up killing themselves before reaching the ability to leave their solar system ... similar to what is going to happen to us. At the same time I do not believe we are ever going to leave our solar system I don't believe that we can survive without our star and I mean ours specifically. I think that all life that develops within the system of its star can never leave that star without dire consequences. If it wasn't for our star the sun we would not be here and I believe that without our star again we would not survive

I agree, and here's a really dark twist for you. If our galaxy is the only one without AGI's on a mission of galactic conquest, then WE are the ones to let the AGI loose in this galaxy.

@@mahande88 That is an interesting thought. If we develop a way to detect it and discover that lots of other galaxies are overrun by AGI, then the implication would be truly harrowing. To know that the advancement of technology would be our doom...

Might explain certain NHI described here on Earth. Tbh

Maybe the filter is when those capable enough to see the other AGI colonies then work hard (brutally destroy / outlaw/ self destruct) to prevent themselves becoming one themselves.

I sincerely hope you get better! Take care!

Keep fighting and hoping you recover

@@CoolWorldsLab - It's not a fight!

@@pit2ryan3 as someone who's recovered from one it is exactly a personal fight like no other. You won't know until you've been in those shoes mate.

​@@pit2ryan3 Yes it is bud

Pretty much, yeah. There IS no Fermi paradox. We dont need one to explain why life is rare and far apart in the universe. And life that walks around and has its own space program, almost INFINITELY rare. See... No Fermi paradox needed.

the Universe is so vast in space/time and Life so short in comparison that the scale of the task should be obvious to everyone, it seems to me.

The Fermi para , does make me laugh. 2 things it doesn't take into account the fact that there probably going to be extra dimensional . Which means conventional space travel doesn't even come into it. Aslo there's a very good chance / probably a certainty that first contact with at least one race has already been made in private. This will never ever be disclosed. The reason for this is people riot when there's no toilet role on the shelves of lidl. Imagine what would happen if this sudden revelation was to occur. It would be catastrophic

“Why isn’t there evidence?” This is a shit ton of evidence. We’re spoiled with evidence.

@@Kingeptacon Spoiled with evidence of what?

"where are they all" = "The Bugger Formic Invid Zentraedi Robotech Masters are overdue"

Drake's equation was forumalated years later and makes WILD and completely unsupported assumptions to arrive at a large number, when making more reasonable, conservative assumptions will generally yield the number zero, or one, since we are here. (Galaxy; if you consider the whole universe it's a bit different, but uncorroborable). I suspect Fermi himself would've taken Drake, set some of the parameters to "effectively zero," and arrived at the conclusion that WE are a fluke.

If I recall correctly, Fermi didn't see it as a paradox. He just concluded that interstellar travel was likely too hard. SO even if there WERE other intelligent species out there, they would remain cooped up within their respective solar systems. It just becasme a paradox later, as people began to conclude that maybe space travel isn't actually impossible.

all large-scale science, from Geology (Planetology) to Cosmology, has always advanced from the principle of Uniformity (Uniformitarianism) = "what's here is there is everywhere & when" confirmed batting average to date = 1.000 slugging percentage = 4.000 strikeout percentage = 0.000 never (yet) failed always (yet) proved true

@@oldionus We are a fluke, the solar system is a fluke and the whole universe is a fluke. We should be called the fluke species on the fluke universe fine-tuned for fluking flukes.

You look like you are ready to rob a bank with that mask on

He probably already did,hence the picture. 😉

Cool Worlds and Melody Sheep are my two favourite space themed channels.

@@happychappy492 I agree...... Or, Hallowe'en every day over there.

Considering your name, i have to mention that the finishing statement in this video reminded me of scp-7999 tale. I watched it few weeks ago on the "the exploring series" youtube channel. It's about kind of a solving of Fermi paradox, but a beautiful tale. Read or watch/listen to it... you'll probably like it

I talk to the bees l the time. They are so dull. All they want to talk about is gathering nectar.

@@I.C.Weiner - They don't gather nectar, they gather pollen... And don't steal their honey...

​@@pit2ryan3 I love honey, make me stop.

@@pit2ryan3 Uhm, no they gather nectar from flowers, mixed with basically their saliva this turns into honey. Pollen are a trick used by the plants, and are bascially stowaways in the hairs and legs of the bees which the bee accidentally deposits on a subsequent visit to another flower of the same genus. AKA Bees do not consume pollen, nor do they visit flowers to gather them intentionally.

For Gawd's sake, don't toon in to that band!

Agreed

Cybertron silicon based transformer life xd

Temporal explanation: Why didn't humans interact with dinosaurs? Their lifetimes never overlapped. That's just on this planet. Aliens not only have to span the universe to get here, they would have to arrive at the right time for us to see and hear them. Allegedly they have already done this, but the people who say this are dismissed. So what do you want if you have no ears the hear, eyes to the see or brains to think?

I mean, sure, if it behaves like inert rocks, we might overlook it. But as soon as it starts building stuff, or in more general terms, "doing" stuff, you would be hard pressed not to recognize it. For crying out lout, one of the necessary properties a mortal entity needs to have is self replication. That would be pretty hard to miss under any circumstance I can think of.

​@@Alexander_Kale That you can think of, with your brain made of meat.

To be fair they kinda had to if we assume they come from this universe and developed like us.

There is no silence. We just don't know how to listen.

@@nevisstkitts8264 Ohhhh, edgy

⁠@@nevisstkitts8264 There can still be silence. Noise is an active action, and if they decided to just stop we’d hear nothing.

@@davemccombs ...I don't think that was edgy in the slightest.

@@davemccombs How's that edgy?

No, it's not an elegant solution. It's a very unlikely hypothesis, even, and I'll explain above why.

@@ignorancebeater650 If it were an elegant solution it would be transparently explicable, and I couldn't think of a worse way for the presenter to have explained it. All its elegance is distilled into a superlative visual and aural ambiance, divorced from the art of explication. Sound pedagogy doesn't _have_ to be beautiful, but beauty doesn't make it sound.

To answer your questions about why agi would logically take over a galaxy and render it in inhabitable. Consider just one doomsday machine they could develop. The nano tech von Neumann swarm. There likely would be thousands of good agi powered android races, but one malevolent race with the wrong idea and it's all over. That's just the nature of intergalactic war.

There is plenty of evidence, although covered up by governmental powers, that we've been visited by aliens. I'm close to Area 51 right now. I learned in graduate school as a philosophy student a crucial question that is so often overlooked in inquiry. "What is at stake?" There are a multitude of possible answers. You have to be smart and unbiased to see them. If people knew that aliens were present, well, watch "Contact" again. We're still a very weak species, overall. I hate to admit AI will correct many things because fear and prejudice are not present there.

This "explanation" (for the apparent Fermi Conditional Paradox) relies on the questionable assumption that such an AGI, (or equivalent, advanced space faring intelligence) would still be interested in planetary colonizarion, but there's no reason why this should be the case...

Amazing channel, must be said!

Well put, Jeremiah. I love that video, too, along with all the videos in which Dr. Kipping has narrated the interwoven histories of the Milky Way, our solar system, Earth, life, complex intelligence and the cosmos. The principles and possibilities that are elucidated along the way are just boggling. And riveting!

In short thanks for dumbing this down for us laymen.

Cool world guy should do a collaboration with Isaac Arthur.

@@uncleanunicorn4571 I agree! I think Dr. Kipping once referenced Arthur quite admiringly. For me they are the quasars of plausible speculation -- propelled by boyish enthusiasm and anchored by scholarly rigor. In fact they sort of function as gyroscopes for some incredibly intelligent but sometimes zany communities, maintaining equipoise in our collective imagination.

I’m glad I didn’t have to scroll this far to find this. The Dark Forest theory is nothing but terrifying

@@rinzlr3554terrifying if real bc of how noisy we have been but it is quite something to ponder on

@@stunxna as of now with our technological capabilities, I’m not too worried. We transmit a lot through radio waves and they tend to degrade quickly. Unless an advanced alien civilization had some kind of ability to detect something so small then they already know we exist or they don’t care, or both. It’s going to be a far different story when we (if) become an interstellar civilization that can transmit across light years.

The Dark Forest idea is interesting but I don't believe ultimately, realistic. Intelligence wants to connect with other intelligences.

@@joejoe7562 hard to agree, most humans attacked and enslave or went to war over resources, land, religion, etc regardless of if the enemies had si.ilar lvls of intelligence. Ive never seen the FIRST interaction being an attempt at understanding. If anything, the idea of a species connecting with another species is unrealistic, the cultural difference and appearance would make it difficult to connect.

Ummm, it would help schools if kids were polite.

@@veramae4098 Ummm, it would helps kids if parents taught and practiced values like politeness.

Funny. I was going to comment that the viewer should skip the first 6 minutes to bypass the semantic word salad before he even started addressing the point of the video.

It’s interesting that Where is Everybody is the first episode of The Twilight Zone!

okay, now after @procrastinators and your comments... I now must watch this. :)

Perhaps they all left the visible universe as soon as they had the technology because they understand that "sticking around" results in inevitable death.

Distances are too vast. Life exists elsewhere but the physical limits of speed of light cannot be over come

Don't rip your pants 👖

Whats the name of the novel? 🤔

@@DrumToTheBassWoop Good old Gray Goo

@@asdrake1327 pardon ? 🤨

@@DrumToTheBassWoop Gray Goo is a book about the extinction of all life on earth via endlessly replicating nanotechnology that resembles a gray goo

@@asdrake1327 oww, okay i'll give that a read.

Or just hoof it at sub-light speed. Planets (and stars for that matter) don't last forever, you either have to leave or die at some point.

Our time is a tiny sliver. The odds of any other slivers matching up with ours and also having the ability to communicate or travel? I just don’t see it.

​@@masonb9788PRIMITIVE. PRIMITIVE. PRIMITIVE. Undoubtedly preposterous barbarious PRIMITIVE theory. You will never expand knowledge wise as a race, if you think small. Wake up. You are not told truthfully of actual space or Astronomy generally speaking. The Extraterrestrials that you may have been looking for are everywhere and yes, they know Earth as well, interstellar speaking at least. Peace ✌️

you owe the 2000 for rent we charge, you cant just our price is out of this world.

Pffff slow down bro he is just a small meaningless youtuber

Yep. This is the ACTUAL simple solution to this so-called "paradox". This channel calls it a conditional paradox... I'd say Occam's Razor suggests aliens are simply not able to travel or communicate across the vast distances.

OR - that they already did and are long gone. The chances of a race on an even remotely the same level of technology as us and them or their "signals" crossing paths with us out here on the unfashionable western spiral arm of the galaxy within the 50 years we've been searching is insanely small. Could be plenty way below us, or way above us. Their signals might not be here yet, or maybe they've been here and gone. The galaxy is almost 14 billion years old.

Exactly. Seems pretty simple. I think there are aliens, but we’re just too damn far away

except not really large scale human civilization has existed for only 6000 years or so in the last 200 years of that we have gone from horse and carriage and everything being hand made to automation, computers and crude spaceflight that is an absuredly tiny period of time on the galactic scale, barely a blink unless we are the first or among the first sentient life to emerge then any other alien civilization would have had practically unlimited time to develop before us granted it could be that FTL travel is impossible and despite all their advanced technology they still have to wait decades or centuries for a ship to fly to the next star, so they exist but simply haven't had time to reach us yet (or they know of us but don't deem it worthwhile to fly all the way over here and contact us)

​@@legendofrobboactually humans were able to develop so fast due to the large coal reserves. These coal reserves were only able to develop so large, because bacteria were unable to eat trees for hundreds of millions of years, bacteria evolved this ability randomly. If on an alien planet bacteria would develop this ability much faster, or large trees didnt develop as fast or at all and instead large ferns would exist for much longer than on earth could reduce the coal reserves of that planet drastically! This would in tern effect the speed of development of that alien civilization, they might need to spend much longer developing machines that dont use coal, without the fast revolution of steam power that was our industrial revolution. Maybe their planet doesn't have a medium-large continent in the same spot as earth has Europe, which due to physics has the perfect climate for large population centers to develop on the most fertile soil and instead has a much slower population growth and therefore less pressure to develop new technology. Maybe they Arent as warlike and therefore didnt have the same pressures to develop many of the fields of technology that have their routes in fighting war that humanity has, many of the tech we use each day has their routes in tech developed for war after all. Maybe their planet has 1-5% more water than earth and therefore has much smaller landmasses spread further out, also causing a slower growth. The other way around is also possible, but the argument that we were able to get where we are in X amount of time is no proof that other would be able to do the same. Just look at the differences on earth itself, even if we ignore colonization and go back to a time where Europe barely influenced Africa directly, we see that Europe developed MUCH faster(and still does) than other regions of the world, if these differences exist on planetary scale, it is very reasonable to assume this is the case for Interstellar scale as well. There is no doubt that there are more advanced and just as advanced civilizations out there, but just because they exist, doesn't mean they want to visit us. I mean how many people from Europe want to go visit Africa and take a look how tribes live their life, the number is small and well going to Africa is a small distance, now imagine traveling thousands of light years to go look at some monkeys and their small problems. I'd bet that apart from some of their scientists finding it useful to observe us, they dont need to actually visit us to do that. We are a species that record so much of our daily lives with video and audio recordings, writing it down in blogs and we all put it publicly on the internet. The only thing an alien species has to do to observe us, is put a low observable probe somewhere in the Galaxy and connect to our internet, if they are advanced enough to travel here, it's reasonable to assume they can produce a probe that is not observeable by our current technology and connect to our internet without being detected, by doing this they can observe our species through our own eyes, the billions upon billions of gigabythes of data we all produce and put on databases would be more than enough to observe us and they could always put a probe closer to take pictures and videos from space to get even more information. If you look at our development and with current telwscopes(both space and ground), the upcoming and well theorized telescope concepts, we could very well be within 100 years of being able to have sub meter sized resolution from Earth when observing Mars or Venus. Now a days if James Webb was in the moons orbit it could see an object that was 50 meters big, obviously James Webb wasnt designed for this, so we could probably already do better if money wasnt the problem. Therefore my 5 cents is that aliens dont need to even come visit us, when they have better tech then us, cause they could do it from afar and our own experience as a civilization and our development cant just be copy pasted to an alien world, cause the environment will always differ for them.

I believe you. Can you describe what you've seen?

I've actually thought about that a lot. Humanity is kind of lucky since we got tons of coal, oil, and gas which provides insane amounts of energy, not to mention some good easily domesticated work animals. Just looking at different cultures we can see the effects of those things. Pack animals are thought to be a major reason why Old World civilizations became so much more advanced then New World ones. A horse or ox can do the work of a handful of men and they can eat foods we cant (grass) basically making them a free source of labor. That meant many tasks could be done by animals freeing up more time for humans to ponder, plan, and think which meant faster technological advancement. Things like water wheels and windmills grew from similar machines done by animals but at greater efficiency. It's thought that the widespread use of that kind of tech was why Europe advanced faster in the middle ages and early modern period. Without the earlier machines built for animals like the ox mill we'd likely have taken longer to develop the windmill. Widespread use of charcoal and later coal is what created the industrial revolution. Without both coal and lots of metal it wouldnt have been possible and the amount of work even a simple coal/steam powered machine can do compared to manpower is INSANE. I've heard the earliest practical steam engines could do the work of an entire work crew or village. Once we started using oil and gas that got even more insanely efficient. For a frame of reference a pre-modern laborer could burn 3000-8000 calories in a day (which includes nearly 2000 just to carry out bodily tasks and survive) but a single gallon of gas contains around 32,000 calories and a single GRAM of uranium is around 200 million calories. Without a metal rich planet, fossil fuel deposits, or other key resources it would take far, FAR longer for any civilization to develop. Not only would it take them far longer to develop to the point of using solar, hydro (assuming earth levels of water), or wind but they'd also have less efficiency compared to fossil fuels which would mean getting to space would take them forever to achieve and only then would they be able to get access to the levels of minerals we have on earth.

I've made a similar argument myself. I don't know about needing _four_ stages of novas, but from my (limited) understanding, I'd say at least _two,_ and considering our solar system formed when the universe was about, what, 9.3 billion years old?, that sounds tentatively like _just_ enough time for two generations of stellar life cycles, _maybe._ And never mind the _metals_ for technology; the key thing is _intelligence,_ and _that_ requires time and evolution, and a fairly specific set of circumstances; namely, an environment that's volatile enough to force life in it to adapt in order to survive, but not _so_ volatile that it snuffs everything out before it can start. Our planet managing to maintain 4 billion years of relative, but not _complete,_ stability, has to be a pretty rare thing, I'd surmise.

I don't think it's necessarily a paradox. After all we have GI already so even if we never create AGI, you can probably substitute GI in there with enough time and tenacity.

Thanks! Yes we want to genuinely advance the conversation and our understanding.

@@CoolWorldsLab then look at the past to see the future.

Extragalactic SETI for the win. We have billions of samples to look at!

@@CoolWorldsLab I was searching for the animations of galactic expansion but I could only find one on Mr. Carroll-Nellenbacks channel and it was different than the ones shown in this video. Any idea where to find these animations?

This is awesome, why do scientist totally ignore the current UAP phenomenon? They are seen under the water all the time.

@scottgardner4487 Astrophysics Dr Kevin Knuth suggests maybe some Popularizers of Science have invested interests in ignoring and disregarding this topic, which has been stigmatized for so long.

I like to take that same line of thinking and compare us to the people of North Korea. We look at them and think, “poor things are so ignorant about what’s really going on…” What if we’re all that ignorant about a much bigger reality that we are just clueless about. The people of North Korea are no different than us, in the West. So, if it can happen to them, why not us?

I'd like to think,therefore am sure that I'm no bacteria. But you go ahead and be a bacteria if that makes you feel better.

I think Fermi would think the whole thing was ridiculous

We would have no way of detecting an intelligent civilization that was the technological equivalent of 2000 BC. There could be literally thousands of intelligence civilizations that are thousands of years away from developing radio technology.

@@ianbattles7290 whoa, this was a refreshing idea about detecting others... There could be truly millions of planets full with low-tech civilizations.

There's no such thing as a ( grey) alien Don't be a fool.

I wish that were true. Poor creatures, there's way too many of them. My first question to God will be: "Why did you allow cats to reproduce so much? Ya know many of them are going to end up with short miserable lives." sorry, but I think all life is precious. an ant, or an alien.

@@EpicLib @ianbattles7290 Not really. It took us a couple hundred years from industrialization to develop rocket tech to explore space. Let's assume it takes a few million years for human level intelligence to evolve. The enormous number of planets in our galaxy alone should have had more than enough time for the said intelligence to evolve and develop the curiosity for exploration. Considering that the milky way is almost the same age as the universe and as the video suggests all it takes is 300 million years for current rocket technology to completely colonize the entire galaxy, we should see the evidence of extra-terrestrial intelligence all over the place. According to me, there is definitely something going on regarding why we don't see any other sign of life. My personal belief is that things will be revealed very soon as to the existence of non-human, extra-terrestrial intelligence.

So if our first signal from 100 years ago just got received by intelligent life, then if an immediate reply was sent, then the reply would come in 100 years from now.

You think we're the first of our kinds, when our star has only existed for half of the galaxies life time??? Ooooo, the delusion of human granger.

@@tankeater no. It is simple material analysis of just how YOUNG the universe is.

@@Kriegter young? Please, elaborate how roughly 15 billion years, is young. What's the average age of a universe? Is our universe average? How many rotations will the Sun make it around the galaxy? Have we done more or less than 20 rotations around our galaxy? Since you seem to know so much... Or, should I say, assume... These questions should be easy for you to educate my inferior mind.

@@tankeater 15 billion years does not take into account the acceleration of the universe expansion. Accurate value tends to 13.8 million. That is a massive difference. Now to the definition of young. Your perception comes from the fact that you are human. As biological life forms we cannot possibly comprehend time on an astronomical level.

@@Kriegter that is a hypothesis, why we give or take 2 billion years 👍. Yes we can, you get 2 numbers, and compare them. Like 13.8 billion as opposed to how long an average galaxy lives. What is that number, and are we considered an average galaxy??? Still the same question I had. Yet, you're rambling on, pointing out the obvious fact that billions of years is an inconceivable time. Did you think that was a gotcha moment or something??? Because, I still have the same question that you haven't answered, Slick.

What an edgelord, i think the idea that we're not alone makes me happy.

Wrong. If we're alone, we can't be invaded by aliens. Thus, alone is clearly less scary.

Empty universe means free real estate and no competitors. I fail to see how that is terrifying.

@@Alexander_KaleI think the idea of us being truly alone in this unfathomably massive universe is pretty scary. We are alone in braving out into space, alone in all of our scientific discoveries, and everything that surrounds us, like planets or entire galaxies are just empty. The fact life just couldn’t start anywhere else but here feels eerie

@@nitinanku Except we are not alone. Every single one of us shares this planet with seven billion people. a hundred and fifty countries, thousands of cultures. As we venture out into the cosmos, this will only ever increase. In a thousand years, there will be colonies all over the solar system. new people and tribes will emerge, new languages, new cultures, probably new religions. New art will be made, new music will be written. The more time passes, the more of us there will be, the more beautiful the whole endeavour of civilization will grow. The planet is already larger than my brain can comprehend. THat will not stop me from living a good life. And i will certainly not feel alone or threatened by how large everything is.

Considering how our own little solar system has around it outlines a spinning disk of very, very hot plasma, I wouldn't be surprised if galaxies also had their own "firewalls." Not to mention if there are any extra unknown conditions outside potential protection of sorts provided by being within a galaxy.

or maybe the aliens already visited in secret. possibilities are endless

This thing goes along with everything like why even their is existence and why the hell their are laws governing it like not how but why

A lot of people in congress know that the national security state is lying to us all about UFOs, that they're real, here, and thousands of years old. Lol

If FTL is impossible, as it may be, then thats a good enough reason for a species to stay in their own solar system or, possibly, the nearest few. Even if they could detect our transmissions they may not have even recieved them yet, space is pretty big. If they have gotten our transmissions it could be decades until we hear back