Why haven’t we found aliens? A physicist shares the most popular theories.

Why haven’t we found aliens? A physicist shares the most popular theories. | Brian Cox

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Күн бұрын

Chances are, we’re not alone in the universe. But if that’s true - why can’t we seem to find our neighbors?
This question is known as the Fermi paradox, and it continues to go unsolved. However, some theories could offer potential solutions.
Physicist Brian Cox explains the paradox and walks us through our best guesses as to the reason for our quasi-isolation.
0:00 Who is Enrico Fermi?
0:22 What is the Fermi Paradox?
1:29 Rare Earth Hypothesis
2:41 Extinguished Civilizations
3:51 Technological Singularity
4:34 Vast Distances
5:14 Cosmic Quarantine
7:31 The Great Filter
9:51 The Great Silence
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About Brian Cox:
Brian Cox obtained a first class honors degree in physics from the University of Manchester in 1995 and in 1998 a Ph.D. in High Energy Particle Physics at the DESY laboratory in Hamburg. Brian is now Professor of Particle Physics at the University of Manchester, The Royal Society Professor for Public Engagement in Science and a Fellow of the Royal Society.
Brian is widely recognized as the foremost communicator for all things scientific, having presented a number of highly acclaimed science programs for the BBC watched by billions internationally including ‘Adventures in Space and Time’ (2021), ‘Universe’ (2021), ‘The Planets’ (2018), ‘Forces of Nature’ (2016), ‘Human Universe’ (2014), ‘Wonders of Life’ (2012), ‘Wonders of the Universe’ (2011) and ‘Wonders of the Solar System’ (2010).
As an author, Brian has also sold over a million books worldwide including ‘Black Holes’, ‘Universal: A Guide to the Cosmos’, ‘Quantum Universe’ and ‘Why Does E=mc2?’ with co-author Professor Jeffrey Forshaw. He also wrote the series of books to accompany his popular television and radio programs.

Пікірлер: 6 000

@stevesm2010 7 ай бұрын

"The moment you are shown to be wrong, you learn something" Words to live by!

@veritas41photo 7 ай бұрын

Yes! Indeed, this statement expresses the central idea of the Scientific Method.

@duncanmacleod7287 7 ай бұрын

@@veritas41photo Which seems to be highly despised by governments these days.

@Corusame 7 ай бұрын

Which a lot of people nowadays hate to hear. That's why we're in this mess.

@genxin9636 7 ай бұрын

Another moment is when you realize that you are wrong and you make changes.

@petebusch9069 6 ай бұрын

It should be worded, you MAY learn something. Most people will argue facts just to be right, at least in their mind.

@ProWrestlingJoe 7 ай бұрын

It's fascinating how Brian Cox have gone over these theories 1000 times already and he's still as enthusiastic about telling them to potential new ears listening as he was the first time he went over the theories. Just wanted to point out how awesome that is.

@ordinarryalien 7 ай бұрын

He's a wholesome guy. I love listening to him and Greene.

@atheistsince1210 7 ай бұрын

I have his Black Holes Book he’s such a gem I don’t know how he can smile knowing the Truth ?

@andersonsystem2 7 ай бұрын

There are definitely other civilizations out there sos e us so vast and our technology is kinda primitive and so it Combe that we don’t have the technology to reach them and maybe they don’t actually have the 12:27 technology to reach us. They could be on the same evolutionary trajectory we are on. That’s my hypothesis

@ngmookleong3415 7 ай бұрын

because that is the only thing he can tell

@axnyslie 7 ай бұрын

I was privileged to have a front row seat at his Horizons lecture in 2022. He is the only one that comes as close to Carl Sagan in being the great science orator and evangelist to the stars.

@Seventeen_Seconds Ай бұрын

I love how Brian Cox presents this type of information, he almost makes it more accessible for non scientific people. Could listen to him all day.

@oahujuniorgolfassociationc6656 Ай бұрын

This guy could explain anything well.

@erikas974 Ай бұрын

Me too

@breadyegg 24 күн бұрын

He's got the kind of voice that would make you feel both relaxed and smart explaining how to put your shoes on.

@waseatenbyagrue 22 күн бұрын

"almost"

@samstevens2021 Ай бұрын

Idk if it's his accent or what , but the way he explains things and breaks things down for us normal people to grasp is just beyond awsome. Hes amazing

@Jasmin.M-hz5ty 29 күн бұрын

If their are any aliens out there,then we should all be happy,and honored by their visit.Becouse we can leave planet earth,see,and learn more.

@nega9000 7 ай бұрын

"If we destroy ourselves, we might destroy meaning in an entire galaxy forever." That's some responsibillty that. Thanks Brian...

@257rani 6 ай бұрын

❤🌏🌍🌎❤🌌🎇🌅✨🌃🔵❤🛸🔭🛰📡🔵🕊💎💫🕊❤🗝

@CEELOW3000 6 ай бұрын

too bad the powers that be don't feel this way

@fredeemoon6053 6 ай бұрын

Dont worry Brians got it completely wrong There are plenty of other more intelligent species out there , Humans messed up their chance to be anything decent Besides why cant the universe live with just wild animals ? Brian , stop making out humans are all that .. We are all obsessed with money, status and material things ...its been killing the earth ..and everything on it

@nega9000 6 ай бұрын

@@darktagmaster1861totally

@ctakitimu 6 ай бұрын

Well to be fair, the responsibility was always there. Just know you know about it.

@wj2036 7 ай бұрын

The fact that we only started to understand space in the blink of an eye relative to the time life emerged, leads me to believe either we don't have the technology to detect them, or we just haven't found the needles in the hay stack yet.

@marcosdheleno 7 ай бұрын

i made a post explaining it, people use Sci Fi logic when it comes to aliens. when all they need to explain why we have not found them is simply because its literaly impossible for us to, right now. just look at the andromeda galaxy, that thing is 2.5 Million light years away from us. so what we do see, is so far away, if an alien were to come here at the speed of light, from the point we see andromeda as, there would be no humanity up until the last 25th leg of the trip.

@stupidveganworld 7 ай бұрын

We’ve traveled so little in the grand scheme of things. They're planning on sending out clippers to other moons on Jupiter/ Saturn. They think there may be life on those. It does seem lack of technology limits our ability to know.

@Bob-pd1wf 7 ай бұрын

We don't understand space. It can't exist as described. The lights in the sky are closer than we are told.

@kjjohnson24 7 ай бұрын

Military radar-involved UFO sightings suggest that they do have the technology to detect them. Our own senses, however, may not be able to detect them. These things could be zipping around our skies all the time at such high speeds that we just can’t even see them…

@Bob-pd1wf 7 ай бұрын

@@kjjohnson24 aliens are a myth. Extra terrestrials from beyond antarctica could very well exist.

@peg1028 Ай бұрын

I did NOT make a mistake clicking on this vid and I learned something !!! Excellent discussion and presentation.

@6XXBANSHEEXX8 7 күн бұрын

I love and appreciate how Brian Cox, a brilliant physicist, can speak to the majority, in plain English, with great enthusiasm and passion. Thank you, Sir!

@paulwilliams2663 5 ай бұрын

Best explanation I heard, was a lady scientist at SETI, who posed, " you can dip a child's fishing net into the sea, a thousand times, and it's unlikely you'll catch a fish. Yet, we know our oceans are teaming with life".

@Dionysos640 5 ай бұрын

Explanation of what?

@kanukki84 5 ай бұрын

@@Dionysos640 Why we havent found alien life.

@Daniel-xg3ul 4 ай бұрын

Lady scientist? So....a scientist.

@markmonaghan2309 4 ай бұрын

@@Daniel-xg3ul , that's right 100% .

@Frankie5Angels150 4 ай бұрын

@@Daniel-xg3ul Silly! Ladies can’t be scientists! They can be secretaries, nurses, teachers, or mommies.

@ElvisRandomVideos 7 ай бұрын

I love how Dr Cox is able to present complex information at a human level that anyone can understand. While at the same time accepting that he could be wrong, because there’s so much we don’t know.

@katelyndoxsee2710 7 ай бұрын

😊

@SparkyLabs 7 ай бұрын

I wouldn't call it complex.

@alfredosilvaneto 7 ай бұрын

@@SparkyLabs the Fermi paradox particularly isn't complex, but Brian Cox, just like Carl Sagan, already talked about many other extremely hard subjects in a way that everyone can understand.

@4J_777 7 ай бұрын

I supposed the weight of science we are carrying currently proves only for humans since we are very limited until then you are right, we might be wrong. Because science could be different for other beings. Pretty cool to think that

@chrisstevens-xq2vb 7 ай бұрын

He talks a lot nonsense mostly which is why he gets on tv

@user-tq9dg5cb2u 29 күн бұрын

One of the most excellent and thought provoking presentations I have seen for a vey long time.

@ItzKamo Күн бұрын

"The moment you are shown to be wrong, you learn something" quote of the century.

@Frankie5Angels150 4 ай бұрын

“There are but two possibilities. Either we are alone in the universe or we are not. Both are equally terrifying.” -Arthur C Clarke

@DilankaDias 2 ай бұрын

In the beginning God created the heavens and the earth.

@RnR1001 2 ай бұрын

@DilankaDias who created God?

@RavingEngineer 2 ай бұрын

God could be a software programmer....

@222ableVelo Ай бұрын

Being "alone" in the universe is not terrifying. I appreciate the attempt to sound profound, but it's not accurate. Why would it be terrifying? Besides we have all sorts of creatures and animals on the Earth. We're not alone in the first place.

@alantasman8273 Ай бұрын

@@RnR1001Since God is infinite and actually created space-time...your question is like an ant trying to understand the infinite.

@wade8130 7 ай бұрын

"Every scientist should be delighted it they're shown to be wrong, because the moment you've been shown to be wrong, that means you've learned something, and that's the way knowledge progresses." That's brilliant and beautiful.

@Dudanation12 Ай бұрын

That earned him my thumbs up

@JP-re3bc Ай бұрын

Professor Brian Cox is a great person. I wish there were many like him, which is not the case at all.

@sroberts605 Ай бұрын

Perhaps there is only one Brian Cox in the known universe?

@Noise_floorxx 10 күн бұрын

Would he say that? Doubtful so why don't you try to be more like him

@penguinmaster7 29 күн бұрын

when you think about it, Star Trek's prime directive would make a lot of sense in how we've never noticed extraterrestrial life.

@mjolnir_swe 25 күн бұрын

Agreed.

@kaptainkrampus2856 20 күн бұрын

@@mjolnir_swe All while MSM and 'Ex'-Military personell like David Grusch, Luis Elizondo, David Fravor and others, after the renaming from UFO to UAP, suddenly trying to sell us the long history of a "recovery and reverse engineering program and that it is in possession of "non-human" spacecraft along with their "dead pilots" (Wiki: "David Grusch UFO whistleblower claims")

@kaptainkrampus2856 12 күн бұрын

@@user-wi4iw9ko6j Well, to be precise, you have to differentiate between claims, clues and proofs. What proof do we actually have? We have claims from (shady) military personell (Grusch, Fravor ring my BS alarm bigtime) from agencies who supressed and ridiculed the UFO topic for more than half a century - and all of a sudden do a 180 and try to sell us UFO ... oh, sorry, UAPs? ANd that does not ring your alarm bell? We had hearings before, the Greer 2001 National Press Club thing, for example. and Greer 'briefing' politics and military for decades now, also? Why the change of tune all of a sudden (and what took Fravor 10 years to come out?) Serious question: What do you think the 'Phoenix lights' were? A military holographic tech test run or aliens? And how do you define 'extraterrestrial' - definitely from 'outer space' or does this include 'subterranian' or 'subaquatic' life forms? How do you know they are not from the bottom of the ocean, which is a total 'alien' world to us? What do we really know? We see things flying around at best - but in the age of drones, you cannot assume 'alien life' from a UFO sighting, or can you?

@mv11000 7 ай бұрын

Prof. Cox is by far my most favourite science communicator. Thank you for this vid.

@ctwentysevenj6531 6 ай бұрын

I always enjoy Prof. Cox's documentaries.

@tonyjohnson3717 6 ай бұрын

We get it y'all like cox

@VeganSemihCyprus33 6 ай бұрын

If schools were honest they would teach you this 👉The Connections (2021) [short documentary]💖

@juliajames2 5 ай бұрын

Yes he draws you in and it was nice hear about all the different theories, he has charisma and is a great story teller, i subscribed to watch his videos. :)

@irisbaez1972 5 ай бұрын

WHERE CAN I SEE THE THUMB DOWN? TO SEE YOUR.

@newride5367 7 ай бұрын

Yes Brain Cox is amazing. However all of you are ignoring the fact that they are already here. 30 whistleblowers providing evidence to congress, since David Grusch testified under oath. He and other whistleblowers have provided names, locations of craft and biological material to the IG. Please keep up guys x

@vice2versa 7 ай бұрын

Exactly its so annoying and close minded how people like him just ignore this.

@user-tz4xx8ly1l Ай бұрын

In every way a really exceptionally good analysis. So worth the time to watch. Treat yourself.

@mdesign8675 Ай бұрын

Love the mysterious background music at the beginning.

@GlynWalters 6 ай бұрын

The biggest Goldilocks aspect for Earth I learned recently was that we're lucky to have tectonic plates, a meteor strike fracturing the surface. Without that, the first emergence of algae and plant life would have cooled the planet to an ice ball it never recovered from. It seems we have more Goldilocks factors than just being a workable distance from the sun

@Morgan-yl3ou 5 ай бұрын

Things went right? We are lucky we are here ? After all weve done We are the biggest mistake ever made Ruining everything in our path Our and greed selfishness has cestroyed earth , animals , nature, wildlife, oceanlife We should never have evolved We are toxic

@Frankie5Angels150 4 ай бұрын

Or… There is God who made us in His image. Why does no one ever consider that in these silly comments?

@nikkiishh690 3 ай бұрын

@@Frankie5Angels150because god doesn’t exist

@Camibug 3 ай бұрын

@@Frankie5Angels150god doesn’t exist, evolution does

@LisaMedeiros-tr2lz 3 ай бұрын

@@Frankie5Angels150 How old is the Earth?

@jamesbuckley8917 7 ай бұрын

That old photo at 6:56 is of bison extermination. A grisly image of a mountain of bison skulls. It was taken outside of Michigan Carbon Works in Rougeville, MI, in 1892. At the close of the 18th century, there were between 30 and 60 million bison on the continent. By the time of this photograph, that population was reduced to only 456 wild bison.

@brandondetroitfanmichaels4325 7 ай бұрын

19th*

@tm2jetfire 7 ай бұрын

@@brandondetroitfanmichaels4325 No, re-read it. 18th is correct.

@leaveitbetterthanyoufoundit 7 ай бұрын

Thank you - wondering what was in the photo.

@Corusame 7 ай бұрын

Humans doing what they do best.

@ThePaulv12 7 ай бұрын

@@Corusame Yes but what was the purpose of exterminating them all? It was to control the Indians and it worked.

@user-fu5no5rh6d 16 сағат бұрын

Simply brilliant and concise. Enables a layman to grasp some understanding.

@KratosAurionPlays 2 күн бұрын

I personally like the idea of the cosmic quarantine. Maybe there are just intergalactic laws saying you can't interact with lower developed civilizations.

@tucker9162 7 ай бұрын

I have watched and listened to the Prof for many years. He could read out a menu and I'd listen intently. A national treasure. I always learn.

@mrpearson1230 7 ай бұрын

One of the most fascinating physicists to listen & learn from!

@ManjulaD 7 ай бұрын

Dude how did you comment on this video two days ago ? Video was released 12 minutes ago

@dixonjavier 7 ай бұрын

@@ManjulaDso damn true😮😮😮😮

@miguelsalas4852 7 ай бұрын

@@ManjulaDThat's a pearson. They are build differently.

@privettoli 7 ай бұрын

@@ManjulaD could it be a live premiere? Or maybe there's a patron group for early access?

@mrpearson1230 7 ай бұрын

@@privettoli bingo

@maxsaeheim3603 Ай бұрын

Brian Cox does a good job explaining the Fermi paradox. I know most people will not believe me but we are not alone, they are here and have been for some time. Some of us have had contact.

@bitterbold Ай бұрын

The most plausible explanation for me is the "time overlap" hypothesis. Even if there are any civilizations out there, it's highly unlikely we can share the same timeline. For instance: Look at any dot (star) at night. The time of that light traveling to us is beyond comprehension and probably that star you're looking at doesn't even exist anymore.

@ToriHalfon 7 ай бұрын

He has a gift of explaining things very easily and succinctly.

@CorporationscontrolNewMexico 7 ай бұрын

The Escajeda Time Paradox is the answer. Humans learn how to develop universes in the future. We created this universe we are in and start the process over again. The universe we created is exactly the same as the one before it so the life develops into humans who create technology to repeat the process. We are in an infinitely repeating loop where we create ourselves and thatis why there are no aliens . It's just us creating ourselves again and again.

@oggyoggy1299 7 ай бұрын

@@iociccio936 and you’ve fallen for it.

@Corusame 7 ай бұрын

@@iociccio936let me guess. Its all gods plan.

@markarundel7856 7 ай бұрын

It's all in his head. How does he know. No aliens, what about the millions of UFO sightings

@earth2death 6 ай бұрын

Almost as if the Gov made it for him

@Yewbzee 7 ай бұрын

Great video. I think it's crucial for everyone to grasp that the Fermi Paradox isn't as baffling as it may seem at first. When we ask 'Where are the Aliens?' we often forget about the concept of time and the limitations of the speed of light. Consider this: We've actively searched for extraterrestrial signals with any relevant technology for only about 70 years, which is like looking through a series of 'time windows' into the past. Imagine we're watching a movie, but we've only seen the first few frames, and we're wondering why we haven't seen the whole plot yet! The universe is 13.8 billion years old, and our 70 years of searching are just a tiny snapshot. What's even more surprising is how few reputable scientists discuss this significant temporal gap in our search, glad to see Dr Cox did mention that. The universe's secrets may take far longer to reveal themselves than we initially thought.

@hannaboba7965 7 ай бұрын

Totally agree. The movie example is a good one. 70 years as a percentage of 13.8bil is almost 0%. So that’s like watching the first 0.000001 seconds of a movie and wondering what is the plot.

@hannaboba7965 7 ай бұрын

Ok I just worked out the percentage.. it’s even less than I thought. It is 0.0000005% 😂

@ottodidakt3069 7 ай бұрын

yeah, fully agree, now put that into context of my other post ...

@johnalden948 7 ай бұрын

Yes!@@iociccio936

@mcinb9 7 ай бұрын

They cant even find a missing dog on my street. You expect to find aliens.

@Paul-wd7mc Ай бұрын

Problem is when you drive along the road in broad daylight and a large floating vessel with just a light in each corner with no other form of propulsion appears and it changes size from 3mx3m to 40mx40m in front of you and only 3.6m off the floor and a voice laughs out loud in your vehicle people call you mentally unstable. The Fermi Paradox is best put back in a cave into the days of UG with a club.

@shepshep8654 Ай бұрын

Intelligence is not necessarily what you understand but your willingness to change your understanding when quality evidence is presented. I don't know who said it first that but it sounded good to me.

@g00nyt 7 ай бұрын

Brian Cox is just a brilliant man tbh.

@W1ldSm1le 7 ай бұрын

I could listen to him forever

@PoeLemic 7 ай бұрын

@@W1ldSm1le Same. If I could have a man-crush, it'd be him.

@ramirezlensonjosephwhiteca5030 7 ай бұрын

@g00nyt he's fucking blind to know what's really going on. Don't follow this man. Follow Linda Moulton Howe

@oggyoggy1299 7 ай бұрын

@@iociccio936 No.

@SlimeBall_Dev 7 ай бұрын

What are your thoughts on Dr. Steven Greer?

@MysticsofIndia 6 ай бұрын

This video is so profound. Best 12 minutes one would spend watching a video on KZfaq ❣

@harryelise2757 6 ай бұрын

How stupid are you,we are absolutely alone in the universe, and I can prove it. I am the one the world 🌎 has been waiting for. When you say you believe , you say you don't know. I'll answer any question you have ,then the question is will you understand the answer. This is the impossible question.

@thingonathinginathing 6 ай бұрын

Ypu should look into the UAP phenomenon with serious intentions. There's over 80 years of overwhelming evidence. We're already so far beyond the points in this video.

@markg.7865 6 ай бұрын

@@thingonathinginathingIf u talking about extraterrestrials on Earth, that's all phony baloney.

@tannerjones6564 6 ай бұрын

@@markg.7865then what is it?

@markg.7865 6 ай бұрын

@@tannerjones6564People's fantasies, not one credible evidence of extraterrestrial life on earth. It's same as Bigfoot and other crap like that. You can't even comprehend the vastness of space and time.

@neomilw4703 3 күн бұрын

I think we are alone in the universe. But as he said, we are special. A beautiful miracle.

@gsco82 Ай бұрын

I have always favoured hypothesis #4, about the vast distances involved. There could be intelligent life on other planets, but the distances are too great for travel or even communication. It was interesting and very thought-provoking,to hear the other hypotheses. Thanks for posting this.

@davidkennedy4845 Ай бұрын

I agree. If so, the tyranny of distance is probably for the better. Humans have trouble co- existing on this planet. Image if we had interstellar neighbours!

@Tes7000 Ай бұрын

In addition to the distances is the sheer number of stars in our galaxy. A civilization with the technology to throw wormholes for instantaneous travel would still have to spend time in each solar system to find out what is there. Assuming a solar system could be visited and mapped in one Earth day, quite an ambitious goal, it would still take a billion years to visit them all. An advanced civilization in a different part of our galaxy could have found quite a few other civilizations like ours, but just not made their way to us yet. Or maybe they have already been here and left. We can only theorize about many of the archaeological marvels around the world, and you can add to that the many cultural groups with ancient myths about visitors from the stars.

@FredrikAndersson597 Ай бұрын

Here he is also only talking about our galaxy - which is of course extremely large. The distance to other galaxies with possible life is of course even greater. The distance hypothesis is reasonable. Furthermore, there is nothing to say that life elsewhere necessarily needs to be particularly intelligent. The intelligence in another world with advanced life may not be higher than that of our mammals, for example. Crocodiles have been on Earth since the time of the dinosaurs, but they are probably not much more intelligent today than they were then despite millions of years of possible evolution.

@juankruger2598 7 ай бұрын

I LOVE Brian Cox. Could and would love to listen to him speak for days

@Boodschap 7 ай бұрын

Civilizations probably exist for a relatively short time on a cosmic time scale. Bringing together 2 civilizations from 2 worlds at the same moment in time is probably like pressing the heads of 2 pins together on a timeline as long as the distance to the sun.

@WaterspoutsOfTheDeep 4 ай бұрын

Evolution isn't real. Cosmic requirements for life show there is pretty much no chance there is another location in the universe that can support life. Why would God create life beyond earth when as Dyson wrote it's as if the universe knew we were coming, it was all created just so we could exist is what the evidence shows.

@bitemyshite Ай бұрын

"probably" 😅 Do you mind if I check your math?

@dodgecrockett3474 Ай бұрын

Dr. Cox uses the word "filter" to explain the limitations that any civilization would face regarding the quest to become a space-faring civilization. Carl Sagan chose the word "impediment" instead of "filter". Carl Sagan said, "Maybe we haven't been visited become of some impediment to interstellar spaceflight that we've so far been too dumb to figure out". A very humbling position for such a brilliant guy.

@farmergiles1065 Ай бұрын

Love this discussion. One paradox. A multitude of approaches to resolve it in some way. And no clear manner in which to choose among them. An answer may deliver itself to us. Or we may stumble upon something. Or we may strain and search and explore, and find a result, or not. But the question is so big, we have great difficulty in just accepting that the unknowns are unknown. So the implacable silence of the problem only feeds us energy not to be docile, or lazy, but prompts us to be active, alive, and engage our understanding. I know something of my own preferences about this paradox, but they don't really matter much. What matters is that we all pay attention to what we see best.

@steelswarm2721 Ай бұрын

What if "what you see" is systematically controlled?

@farmergiles1065 Ай бұрын

@@steelswarm2721 And just how do you propose that that is done?

@steelswarm2721 Ай бұрын

@@farmergiles1065 I don't mean the empirical act of you doing your own research or reaching certain findings with your own funds. I mean realizing the fact that essentially the information you take as truth from mainstream science that comes from peer reviewed articles and scientific magazines is controlled by the agencies that offer the grants and the funds. This meaning that you essentially are shown only what those up there want you to see or the conclusions they want you to reach. If there is evidence they don't want you to see or to understand, you most likely aren't going to even be aware of it. They will cut your research funds dead on. Noone will discuss it.

@steelswarm2721 Ай бұрын

@@farmergiles1065 In conclusion, there is no paradox, but this topic is purposefully not funded and studied (just like many others like anti-gravity propulsion) to prevent information from reaching the majority of the public.

@farmergiles1065 Ай бұрын

@@steelswarm2721 One thing I love about this video is that it is not bringing this junk into the discussion again. Yes, yes, it's happening. Set it aside for a moment to consider something else. Your point is not essential; it's practical. But it also makes the same mistakes everyone makes when they begin to talk about the practical. First, you are making assumptions, not particularly on the mark in my case. For example, "the information you take as truth from mainstream science". You assume I take mainstream science as truth. Well, "truth" is too powerful a word for it in any case. And not all of science is equally consistent with truth. Next, you do not know what I see. Yes, I am shown this or that by various sources, and it's not too difficult in most cases to see what conclusions they have reached. But I don't just absorb everything I "see". I see that there is manipulation, that there are failed efforts at being convincing, and that there are more than one way to draw conclusions, as well as more than one logical conclusion that can be drawn (often). I pity the poor idiot who believes everything he sees or is told. There has been misinformation as long as there has been language. And to top it all off, science is not about proving things true. It is about collecting evidence and trying to make sense of it. The best science can say is "this is the best we've been able to determine to date". And every scientist hopes that later a better understanding will rise. I think that's more along the lines of what this video is about. The problem you raise is eternal and universal - a given in the world. The most important thing to learn first is how to deal with it. And then you can put it in its place.

@micealhome6363 7 ай бұрын

Given the depths of time and the incomprehensible size of even the observable universe I find it hard to believe we are alone. Since there are parts of the universe we will never “see” this only adds to the probability that conditions somewhere in the vastness were/are conducive to the existence of life.

@marhensa 7 ай бұрын

I believe that aliens are indeed all around us, observing us in hiding. They are closely watching us, waiting for us to develop some technological advancements that are not in line with their own. If they were to suddenly reveal themselves and their technology to us, there wouldn't be much "new" technological development from their perspective.

@TheKeirsunishi 7 ай бұрын

Despite our observable is increasing as more light reaches us, sadly the rate at which this is happening is slowing and will eventually stop due to the expansion of the universe. Our cosmic horizon is also shrinking as time goes on as well😢😢

@skierpage 7 ай бұрын

The Fermi Paradox isn't about the prevalence of life, it's about civilizations advanced enough to produce signatures (currently electromagnetic radiation or actual physical objects) apparent to us. There don't seem to be any in the Milky Way galaxy 😢. It would be great to know that other planets have dolphins, ants, or even just protozoa, but that would require us sending probes and sensors all over the Milky Way... so why haven't other civilizations done the same?

@FOWST 7 ай бұрын

Some would argue, that aliens have already visited us. There's stories in the mahabarrata, the book of ezekiel and other cultures like the zulu and probably many more indigenous tribes around the world tell stories of their ancestors being visited by sky people, gods or angels. Also, since the atomic age they've made a reappearance, there's been a whole fleet over washington in the 50s, Buzz Aldrin saw them on the way to the moon, The former canadian minister of defence Paul Hellyer saw documents which indicate their existence, the phoenix lights happened with 10.000+ witnesses, military staff stationed at nuclear launch sites have seen them and report them messing with their electronics, the navy has encountered them and chased them numerous times, the latest whistleblower claims they have bodies, but hasn't come forward with concrete proof. Mainstream scientists, Neil DeGrasse Tyson first and foremost, are too quick to dismiss eyewitness testimony. If it weren't aliens, but a shoplifter in court, he would be convicted due to the overwhelming amount of witnesses, including one of the first humans on the moon, and he'd also be captured by multiple security cameras. But most of the scientists speaking about the fermi paradox seem to be completely ignoring all the witnesses and evidence, still trapped in the "science vs religion" conflict of the 60s. Claiming that we have "no evidence of aliens" is a cope which requires extraordinary ignorance. Don't get me wrong, I like Brian, but this is a topic he seems to know nothing about. It's like if a layman was asking for "better" proof of black holes, telling established scientists that "one blurry picture" isn't enough, and that they're not convinced by calculations.

@honey-fe6pj 7 ай бұрын

@@FOWST LOL he is the layman you say ?

@ZIN74FF 7 ай бұрын

My opinion is that there is intelligence somewhere else as well. it doesn't necessarily mean that being alive brings intelligence. there must be other forms of intelligence, for example: energy based, machine based or even dark matter based. we mainly focus on finding life which resembles our way of understanding life and intelligence whereas life is indeed an intriguing concept to understand more about.

@JF-yo7vu 7 ай бұрын

Nice and entertaining to let our imagination flow. But that isn’t how science developed. We build on what we already know, not on the craziest ideas we can imagine. Theres a reason the structure of the universe looks the same everywhere. The laws of physics are the same everywhere, so we are indeed talking about intelligent species on planets..

@ZIN74FF 7 ай бұрын

@@JF-yo7vu Great point you've bring up there, indeed science is based on factual knowledge but I have another example and would like to know your opinion about it. the series of events occurred here in a specific order in the making of AI, there could be a place in this infinite universe where the creation of AI wasn't done by a superior civilization but by nature via same or similar events. to think about that there's high possibility of life being way wild and different than what we can currently undertand. we maybe the first or the last one of its kind where there could be way different kind of life.

@lucymilne4086 7 ай бұрын

I agree, we are a carbon-based life form and it's surely possible, somewhere in the universe, for there to be other forms of life out there. We currently have no way of discovering/detecting even at the ends of our galaxy, sadly, nevermind in other places. But it's fun to hypothesise

@komalpanchal1118 7 ай бұрын

@@ZIN74FFBelieve it or not. You don't understand AI. You consider it as some being but not biological.

@ZIN74FF 7 ай бұрын

Why're u assuming that I'm considering AI as non-biological beings.

@johnniet.7820 Ай бұрын

Very enjoyable and informative, simply explained hypotheses of a great question. My belief is that there are other civilizations out there that have had enough time to evolve beyond our ability to space-travel, and that they are here on our planet, that have been interacting and perhaps manipulating our evolvement to higher vibration beings for thousands of years. I do concur however that civilizations, no matter how technologically advanced, can be wiped out entirely or set back to a one-cell primal stage due to to cosmic or earth catastrophes. And as an addendum, as history seems to repeat itself, perhaps there is a repetitive cycle of the rise and fall of the growth of civilizations, which could in fact be generated in the same time span, facilitating possible mutual contact.

@onemorechris Ай бұрын

the greatest living science communicator. no one else even comes close

@ChristopherStrevens Ай бұрын

The problem is that people who see them are attacked by psychiatrists who destroy the evidence by cutting out the witness brains.... I've seen it happen.

@emo_galaxy9413 5 ай бұрын

Brian Cox is one of the good ones. I always appreciate his take on things. Great video!

@matildagreene1744 5 ай бұрын

The good one what ? (good ones ) ??

@mrsparkymajor5284 3 ай бұрын

@@matildagreene1744humans

@davidcross8028 2 ай бұрын

He's so very wrong about a lot of things. Rarely bother to watch him.

@watts18269 2 ай бұрын

@@davidcross8028and yet here you are

@natesilvers2166 Ай бұрын

@@davidcross8028 and he's not even vegan, so can't be that smart or value life that much

@beav1962 6 ай бұрын

I'm a believer in #4 - Vast Distances. The energy involved in traveling to even nearby stars is enormous. Forgetting stable wormholes, the time involved is also prohibitive. We are just now working on getting BACK to the Moon after 50 years. A manned trip to Mars is probably more than a decade away. I will also add that time between technological advances must play a large part.

@whitey6317 2 ай бұрын

sort of proves god is real. why is there such a limitation on how fast and far we can travel.

@Gabrielbodw 2 ай бұрын

@@whitey6317how does that prove god is real

@DanielVerberne 2 ай бұрын

@@whitey6317 I think you're on the wrong channel if that's what you think.

@Saladicious_ 2 ай бұрын

@@whitey6317 it proves nothing about god

@whitey6317 2 ай бұрын

Because we are incapable to traveling at interstellar speeds due to energy limitations. Quantum physics also proves matter behaves differently while being observed. The most renounced physicists in the world believe we live in a simulation. Which proves gods existence to me. And look around at all the Evil in this world and then read the bible. It all starts to make alot of sense. @@Gabrielbodw

@mdwoods100 Ай бұрын

One of my favorite science personalities.

@cowtownokla 5 күн бұрын

We don't know if there is "life" in other areas of our galaxy. It could be possible that we are using a far too rudimentary definition of "life" and therefore don't recognize or haven't developed the ability to see it.

@bittersweet7145 5 ай бұрын

Personally I'd love for them to show up, not just because we'd learn something but it's in the curiosity of the explosion of profound questions and possibilities it opens up and all the other things we can potentially learn from them and the way we interact. It's such an exciting idea - even in discovering single celled organisms on another planet. Also Brian Cox just seems like the nicest bloke

@zz-nc5kx 5 ай бұрын

Well, they are not going to show up due to the vast distances and the cosmic speed limit.

@mikestephens5200 5 ай бұрын

I personally think they are here. Our own government admitted there are things flying around us that we don't know what they are. Most governments admitted such years ago btw. Most people have seen the military videos by now. To deny it is to deny facts. The questions now are; Are they just unmanned probes sent long ago to Earth? Are other beings already amongst us? Were they here before us? Are they residing under water, in Antarctica or on the far side of the moon? Are they our progenitors?

@RedLineShortFilms 4 ай бұрын

What do you mean? They are already here. We also have evidence and testimonies from 952 military whistleblowers. What other proof do you want?@@zz-nc5kx

@muzzyali8011 4 ай бұрын

Yes exactly. I think a lot of people throw what you said away. I believe there could be life in the galaxy other than Earth but due to the cosmic distances, we will never interact with another planet with life like ours. It's sad but look at the distance of the closest star. It would take us over 50,000 years to reach there with a manned spacecraft.@@zz-nc5kx

@brax2364 4 ай бұрын

@@zz-nc5kx LMAO. You’re basing that statement on what WE know, not on what THEY might know. Look back at our history at how many times so-called experts said this and that is not possible. Hell, it wasn’t that long ago that striking a common match would have gotten you burned at the stake for witchcraft.

@dennistucker1153 7 ай бұрын

It is "The Great Filter" that deeply moves me. For me, the Great Filter is also known as DEATH. It could be a single event or a series of events that ends all life. I love Brian Cox's speeches.

@michaelneuber1120 16 күн бұрын

What meaning are you talking about? What is meaningful in this world on a perspective other than our own? Why do we have any kind of responsibility? To what degree do we even really understand? Is there anything to understand? Why can we not just let something be what it is without looking for some sort of causal relationship between everything?

@cordbarnes Ай бұрын

The cosmic quarantine hypothesis is actually consistent with more technologically developed groups. Think about some of the ways modernized society restricts interaction with uncontacted tribes; in some ways that is like a self-imposed quarantine.

@jasont5871 6 ай бұрын

Considering how much different life that has existed and exists on earth right down to microscopic I'd say the universe is chock full of life,it's just the massive distances that separate us from actually finding out.

@WaterspoutsOfTheDeep 4 ай бұрын

The fine tuning evidence and requirements for life show the probability there is another earth like planet is a number 1 in a number greater than the number of atoms in the universe. So it's quite doubtful life exists beyond earth. Those requirements keep growing each month as science progresses.

@richkavanagh2778 2 ай бұрын

I agree with you , even if we worked out how to travel at the speed of light , it would still take 4.22 years to reach are closest neighbour. It’s insane when you have think about how much space is between each star

@scottpitner4298 7 ай бұрын

So glad to see Brian C doing so much for this field and science in general. He will help kids and others learn and become interested, kickstarting careers of future minds to further the knowledge of people.

@LarryFleetwood8675 4 ай бұрын

He's a front, like all of mainstream science's scientists.

@thegoat11111 4 ай бұрын

😂

@WaterspoutsOfTheDeep 4 ай бұрын

Brian Cox is highly dishonest he is doing a disservice to science in general. He doesn't even accept the established research in his own field that shows the universe had a finite start thus is not cyclical or eternal because it counters his Atheistic WORLDVIEW. This from some of our most proven science the space time theorems. How pathetic is that. Once I saw that I lost all respect for him and can't trust a thing he says after hearing him say we don't know if the universe had a start. The audacity of this guy.

@Triadistic 27 күн бұрын

"Perhaps it is inevitable that with technological advance ultimately comes wisdom." @7m. Except for this quote I find everything he says sane and the same as my thoughts that came up in my mind when I watched ancient aliens.

@ajproductions7427 24 күн бұрын

guys read or watch 3 body problem. they shed a lot of light on this topic

@blastically 5 ай бұрын

This is a good discussion of the issue. Personally, my guess is that it is a combination of (1) the rare earth hypothesis and (2) a filter going from prokaryotic cells to eukaryotic cells. Regarding the second point, as the video implies, so far as we know, the incorporation of a bacteria mitochondria cell into an archaea single celled organism only happened on earth one single time and only happened after about two billion years of bacterial life. It probably is a very rare event, and most planets may not be stable enough to wait that long.

@rufusmcgee4383 Ай бұрын

I might add two other events, extremely rare, also needed to occur, and in the correct order. The second event was the Cambrian explosion, aided by, as I understand it, a great number of environmental factors that came together after the last snowball earth. All the major life subsystems developed in that short period. Finally, the extinction of the dinosaurs, wiped out the largest, most successful predators of the time to make way for the smaller, but smarter species of mammals. Hard to imagine very many planets end up like Earth, even with a whole universe of them to choose from.

@theicemankk 6 ай бұрын

Those 20 seconds of narration starting at 11:15 brought goosebumps. Very elegantly said. If we truly are the only intelligent beings to ever exist then it would be a shame to mess up what we have and experience.

@matildagreene1744 5 ай бұрын

Already have..that's obvious !! LOL

@frankgallagher5786 4 ай бұрын

yes it would be a shame but would it really matter? There is obviously so much that we do not know and probably will not live to see.

@delir.6488 2 ай бұрын

We are NOT inteligent. And humans are not human, most men are inhuman. They don't how to Stop fighting. Men don't know, how to do a business without tricking the clint.😂😂😂😂

@user-ww5lg9xv1s Ай бұрын

I love your enthusiasm!!!!

@TheEnd-pp9mo Ай бұрын

Really enjoyed this video!

@chriswhitenackmediaproduct6906 7 ай бұрын

I think along the lines of just because we don't see them doesn't mean they aren't there. Our technology today is brand spanking new in space time; not so long ago, the north and south American continents didn't exist. Plate tectonics weren't even an idea. Yeah, we still really need to keep our egos in check.

@whataday443 7 ай бұрын

The most frightening hypothesis is the technological great filter. That every civilization at some point along their evolution inevitably discovers a technology that immediately wipes them. A lot of people point to AI as being that thing, but personally I am much more afraid of things like particle science. Who knows what could happen if we keep toying with anti-matter or discover ways to harness dark energy.

@ottodidakt3069 7 ай бұрын

except that "AI" is over exaggerated hype at this stage (marketing if you prefer), not saying AI won't happen, but for now we're really talking advanced calculators who stick to the program !

@thembamabona9809 7 ай бұрын

climate change!!!!! why is this so hard to understand?!? completely beats me….. especially with such a scientifically informed crowd. there’s no limits to human denialism….

@uuhuu 7 ай бұрын

AI + Particle Science then. AI have the ability to speed up the process of particular issue, whatever it is.

@undefinedvariable8085 7 ай бұрын

Personally, it's the Dark Forest Hypothesis. Consider how we would perceive our noisy existence in the cosmic neighborhood once we realise, or some how figure out, how easy it is (relatively) to destroy another civilization in another system. If we had the means to do so, would we not suddenly become alarmed of our own vulnerability? It would be logical to assume that similarly advanced civilizations could do the same. And if they're worried about the same thing, would they shoot first not to risk being targeted? If the ultimate price for naïve good faith is total annihilation paranoia may compel action.

@oggyoggy1299 7 ай бұрын

@@ottodidakt3069 Well AI is happening so there’s not point saying otherwise. It exists now.

@worldwide846 5 күн бұрын

Very well told with the orchids sounds spot on.

@ThymeStamp Ай бұрын

Like that one lady said, a 12oz glass of water compared to all the water on this planet is how much we’ve explored our own galaxy. So if you fill the glass with ocean water and don’t see any 🐠 and say welp! no 🐠 , there must not be any 🐠 in the whole entire ocean, that just makes the kind of sense that doesn’t

@SmashPhysical 6 ай бұрын

Love his conversational way of explaining things.

@asianconnection7701 3 ай бұрын

Remember the FRENCH GUY who claimed he went to the future and saw himself, what he did was slip into another simulation of himself in the future and see himself. A similar thing happened to me and I witnessed exactly what this FRENCH DUDE saw.

@DataSmithy 6 ай бұрын

Amazing! The best summary of the fermi paradox and related great filters that I have watched in a while. All alien "watchers" should absorb this, and think deeply about our, and the Earth's, long term fate.

@bitemyshite Ай бұрын

how many different summaries of simple concepts do you actually watch? Why should I absorb some hyperbole and think deeply about Earth's fate?

@powerdavid6235 27 күн бұрын

The universe is unimaginarilly vaste, why would anyone assume aliens would come to our part of it. It's like dipping a cup into the ocean and saying, "There's no Whales in this cup, where are the whales?".

@DhooomKetu 2 ай бұрын

Brian cox really understands the universe tbh and guy speaks so well

@dodgecrockett3474 25 күн бұрын

Dhooom, thank you for your honesty.

@------YeahOK------ 7 ай бұрын

It's good to hear Brian hypothesise about advanced beings. Normally he won't entertain this. But we have to consider that we are not alone on Earth, and possibly never have been.

@tehdanny682 7 ай бұрын

The idea is interesting. The proof just isn't there yet. If there's anything we explore a lot, it's our own planet. If there's anything we talk about, it's when someone or something is acting out of the ordinary. So I think that we'd know if there were others. If one person saw one alien, and uploaded credible proof to the internet, it would have a billion views within a week.

@JF-yo7vu 7 ай бұрын

Although entertaining the alien stuff brings more attention to science and helps grow the industry. Almost all big scientists believe we are alone and give small probabilities to alien theories for a reason

@mjt1517 7 ай бұрын

You also have to consider that we are alone.

@Admiralty86 7 ай бұрын

@@JF-yo7vu imagine what they'll know tomorrow.

@kylebushnell2601 7 ай бұрын

He’s still Very far behind on this. Fermis paradox should literally never even be spoken up again, unless it’s to decipher how it is totally incorrect.

@hunter_lite Ай бұрын

Fascinating. With enthusiasts it seems there is always a big revelation around the corner, but it never arrives. Most want to believe -- myself included -- but we shouldn't jettison our critical faculties.

@steelswarm2721 Ай бұрын

You should however, do some research around the fact that this subject has been covered up for about a century.

@regalcartoon3952 2 күн бұрын

The scary thing is something we try to ignore: What if we haven’t met other aliens because someone or something is stopping that from happening? 😳

@2BAvalon 7 ай бұрын

What a pleasure to listen to this man. Lovely way to teach and speak.

@pippastar1606 7 ай бұрын

my thought exactly

@ga6589 7 ай бұрын

@@iociccio936 Nah... indoctrination is what religions excel at.

@andysedgley 2 ай бұрын

I'm with Douglas Adams, and Technological Singularity. "For thousands more years the mighty ships tore across the empty wastes of space and finally dived screaming on to the first planet they came across - which happened to be the Earth - where due to a terrible miscalculation of scale the entire battle fleet was accidentally swallowed by a small dog."

@martinstubs6203 Ай бұрын

There is one thing about this line of reasoning that puzzels me: Why should someone be "delighted" if the answer to some open question turns out to be one specific thing or the other? This would imply that one answer is seen as being more favourable or "better" than another. This is a quite unscientific approach not least as it tends to compromise a scientists objectivity when working on a scientific problem.

@baronvandedem3997 4 күн бұрын

I could listen to Brian for hours, even with my ADHD brain.

@MichelleCarithersAuthor 7 ай бұрын

love this conversation and discussion.....these hypothesis deserves this type of attention and the willingness to take it there....expand the possibilities....I agree to be proven wrong or make a mistake is a great learning experience which will elevate your thoughts

@user-wi4sd2pd2c 3 ай бұрын

Well said Brian, you keep it on a realistic level of understanding.

@Shumito-jq5oh Ай бұрын

There are numerous of encounters, confirmed in effect. So we are not the only one, for sure these encounters dont happen frequently.

@j.a.weishaupt1748 12 күн бұрын

8. We are the most advanced species in the galaxy. This is one theory of my own which I don’t see mentioned often. Most people think of extraterrestrial life as technologically way more advanced than we are. But what if WE are the most advanced ones? That could explain a lot.

@maggimar3118 6 ай бұрын

Never get tired of listening to this man, absolute genius.

@DanielVerberne 2 ай бұрын

Cool, but it shouldn't be the host you find fascinating, but the topic. The Fermi Paradox is one of the deepest, most transcendent questions we can pose.

@maggimar3118 2 ай бұрын

@@DanielVerberne Can it not go together, the host and the topic? Although my knowledge in the field is non-existent, I can nevertheless enjoy the scholar's discussion.

@DanielVerberne 2 ай бұрын

@maggimar3118 it can indeed, I regret my comment.

@AngryAnt0 6 ай бұрын

Utterly love Brian Cox, really is one of the greatest science story tellers of our time. Personally I like to lean towards we're one of the first and as a result should be looking after the world and everything around us & that we've already passed through the great filter, because if it's still to come, then that's terrifying to me.

@bernardm2528 5 ай бұрын

We are the only intelligent life in our universe. We can't even look after our own planet? I can imagine going to other planets, and asteroids etc. and dynamiting them to bits to unearth diamonds and gold etc.

@jameslane9267 5 ай бұрын

We definitely have not reached the great filter of humanity yet. It’s pretty obvious that it is still to come.

@WaterspoutsOfTheDeep 4 ай бұрын

Brian Cox is highly dishonest. He doesn't even accept the established research in his own field that shows the universe had a finite start thus is not cyclical or eternal because it counters his Atheistic WORLDVIEW. How pathetic is that. Once I saw that I lost all respect for him and can't trust a thing he says after hearing him say we don't know if the universe had a start. The audacity of this guy.

@maddyfighter7881 4 ай бұрын

@@WaterspoutsOfTheDeepbrian cox is right … we actually do not know . There can be n number of theories and interpretations given but they are still theories only. accepting the fact that we do not know is a tremendous opportunity to learn something.

@WaterspoutsOfTheDeep 4 ай бұрын

@@maddyfighter7881 Brian Cox is wrong in saying we don't know. We do know. Mankinds most proven knowledge the space time theorems have told us there must be a God. Borde and Vilenkin took Hawking and Penrose work on classic general relativity and expanded it as far as possible with 5 papers in an attempt to disprove the Big Bang and it's Christian implications and concluded "all reasonable cosmic models are subject to the relentless grip of the space-time theorems." They gave examples where you wouldn't need an absolute beginning to space and time but in such models you wouldn't have life. So there has to be a causal agent(God) beyond space and time because the universe is not cyclical/eternal. This was back in 2009 and his own field of science. So he has ZERO excuse to be ignorant of it. In other words he is completely dishonest because it destroys his Atheistic naturalistic worldview

@nessie022 29 күн бұрын

I like listening to Brian Cox, its a pity that the background noise ruins this video! Whats it for, is it supposed to enhance the video?

@merlinsrobe4621 11 күн бұрын

Radio waves broadcast from earth more than a century ago are travelling through the Milky Way at near the speed of light. These radio waves have traveled through less than 0.1% of our galaxy. Mathematically we still need to wait at least another 5-10 thousand years before our transmissions have traversed enough of the galaxy and alien responses to have had enough time to reach us before we can really make any meaningful conclusions either way. Sucks right?

@oriond1934 7 ай бұрын

Brian Cox, at 55 years old, might just be the true extraterrestrial among us.

@veritas41photo 7 ай бұрын

I love this hypothesis!

@FurorWho 6 ай бұрын

I believe he was transported to his mothership, straight after he finished filming this. It's a fact that no one knows where he lives on earth. He's gone back to his people to let them know, we are still clueless about their existence on Mars.

@572patrickvanhorn 6 ай бұрын

i love when some one can prove me wrong with logical and real proof because it means i can learn something new more details to the bigger picture and that is always amazing

@johnboettger864 3 ай бұрын

WOW, far out, tanks.

@garethbrowne6289 Ай бұрын

Super video. Thank you.

@418cjpaul 6 күн бұрын

a great analysis!!

@VicJang 7 ай бұрын

Great video. I watched the Kurzgesagt one long time ago so I knew about the different theories. It’s great to hear more explanations on this topic for sure.

@SixSioux 6 ай бұрын

Amazing channel Kurzgesagt!!

@scottieduck2375 7 ай бұрын

Someone needs to introduce Mr Cox to Bob Lazar and Dr Steven Greer

@Tara-sh4ve 7 ай бұрын

I dont think many hardcore scientist are ready for the latter xx

@dadillonful 6 ай бұрын

Bob lazar is a fraud, he’s been lying for decades for fame and fortune, he’s been living off gullible people

@creepyuncle542 6 ай бұрын

Why, they're both crackpots

@Stewbular 6 ай бұрын

Or to the 60 years of documented alien encounters now available through FOIA requests

@Stewbular 6 ай бұрын

“We” is a logical fallacy “They” keep secrets from “us” “They” pretend that “we” haven’t interacted with aliens right here on Earth

@DeepSeaToasterFighting 25 күн бұрын

“Space is big. You just won't believe how vastly, hugely, mind-bogglingly big it is. I mean, you may think it's a long way down the road to the chemist's, but that's just peanuts to space.” ― Douglas Adams, The Hitchhiker’s Guide to the Galaxy

@getmad3013 Ай бұрын

it doesn't matter if we find forms of life in universe, we are never going to leave this place

@NAVMAN987 7 ай бұрын

Always a pleasure to listen to Brian Cox.

@rolf-joachimschroder917 7 ай бұрын

On the topic of rare earth, what makes our solar system so unique? The planets do not only rotate around the sun like the moon does around the earth, but also rotate around their own axis, which is not normally the case in a solar system. what makes our earth so unique, it is a rocky planet just outside the habitable zone that consists of two planets that collided, the light parts flew into space and formed the moon, the heavy parts form the earth. The Earth therefore has an iron core and thanks to the rotation around its own axis, a magnetic field is created around the Earth. So the fact that in a solar system the planets not only orbit the sun but also revolve around themselves and that a planet in or near the habitable zone has an iron core that has produced such a magnetic field is very unusual.

@vice2versa 7 ай бұрын

I feel like no one is really considering just how huge the universe is. Its significantly bigger than the rare probability of life forming like it does here.

@Sp1n3c 22 күн бұрын

He has finally evolved his thinking and found few good reasons !

@TomTschritter Ай бұрын

what may stop us is the fact there are limits to exponential growth. We've reached our biosphere's carrying capacity and if we don't stop there will be a social and perhaps technological collapse, not continuation.

@danielcarline8681 7 ай бұрын

Finally, this is the first and only time i've heard the options of fermi paradox that prove it's not a paradox at all. Technology sufficiently advanced that it is simply not detectable by us is literally the Occam's razor of Fermi paradox. Glass half full All civilisations end themselves on a long enough timeline. Glass half emtpy. thankyou Brian Cox. I vote for you as ambassador when we do make public first contact ;)

@clwho4652 7 ай бұрын

The simplest and most logical answer is: they are too far away and not old enough to have gotten to us by now. As for signals, unless they are sending signals to us the signals they transmit will decay to the point we can't detect them. Its only a paradox if you assume the universe is infinity old, we know it isn't and we know it took more than one generation of stars to have enough heavy elements to form rocky planets. Combine this with how long it took for us to evolve, then the distances would be too great for them to talk to us let alone meet us. The dumbest idea is the Dark Forest. It basically states that civilizations are either cowards or killers and anything in between gets killed by the killers. Any species so terrified of other life that they would kill it just in case would have been to terrified of anything new to have advanced that far, or just wiped themselves out out of fear of some other culture on their planet. Its stupid.

@bchristian85 7 ай бұрын

Yeah, and on the geologic timescale, the chances both civilizations would be at the right place in evolution at exactly the right time to make contact with humans is incredibly small, even if the galaxy/universe is teeming with civilizations.

@boogiewoogie450 7 ай бұрын

Kurzgesagt is waving and hiding in the forest.

@benjones6004 7 ай бұрын

@@bchristian85 they made contact with us 450 000 yrs ago,& still are to this day

@benjones6004 7 ай бұрын

distance to them is not an issue, since that can travel here in an instant, they dont travel in straight lines, they bend space/time, as for communication they do that through consciousness

@robynking-oq7kc 7 ай бұрын

Zeno's paradox motivated Georg Cantor onto transfinite mathematics, scientists love to play (3)Tree and 2022 Webb telescope photographs of the cosmos can make you assume the universe is infinitely old.

@romillyh Ай бұрын

Idea no. 42: aliens and the civilisations the good doctor is discussing probably aren’t related and are better not considered as linked phenomena at all (e.g. 0:22 “By ‘they’ I mean aliens.”) Otherwise an excellent overview of a very solid topic.

@jeffhunter407 29 күн бұрын

This is a fascinating discussion. Why we haven't found any aliens yet, and I must say, the explanations offered are definitely thought-provoking. The video delves into various hypotheses, from technological limitations to environmental constraints, and even touches on the Fermi paradox. But amidst all these theories, I believe there's another equally viable alternative that deserves consideration: the possibility that God simply made it that way. Now, before you hit the dislike button, hear me out. The more we delve into the mysteries of the universe, the more questions seem to crop up. It's like peeling back layers of an onion - the deeper we go, the more we realize how intricate and finely tuned everything is. From the precise conditions necessary for life on Earth to the vastness of space, there's a certain awe-inspiring complexity that hints at something beyond mere chance. As the video wisely stated, "every scientist should be willing to be proved wrong" - and that means considering all the alternatives, even if they don't necessarily align with your personal beliefs. So while the search for extraterrestrial life continues, perhaps it's worth pondering the idea that there's a purposeful design behind it all, orchestrated by a higher power. Let's keep our minds open and continue exploring the wonders of the cosmos, knowing that the truth may be far more extraordinary than we ever imagined.

@kensawka Ай бұрын

Ah, the deep human desire to know that we are not alone, that something is beyond us, something from which we can learn to be better humans, something that will help us, dare we say "save us", etc...... Too bad we refuse to acknowledge the Reasonable and the Obvious, simply because doing so would point a finger back at us and our moral choices!! Curious as to why the "They've already been here and we were blind to them" hypothesis was not included.