Brian Cox - Is The Universe Infinite?

Brian Cox - Is The Universe Infinite?
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Brian Cox talks about the possibility of the Universe being infinite. Of course the question, does the cosmos go on forever, is an age old question in philosophy and science.
The observable universe is finite in that it hasn't existed forever. It extends 46 billion light years in every direction from us.
But what lies beyond the observable Universe?
Brian Cox explains how big the Universe really is.
What we know for certain is that the Universe is bigger than we observe it to be, essentially because the farthest edges of the universe we can see don’t look like edges at all. The observable universe is still huge, but of course it has limits. That’s because we know the universe isn’t infinitely old. We know the Big Bang occurred some 13.8 billion years ago.
#ProfBrianCox #Universe #science
Sources: Brian Cox at the JRE: • Joe Rogan Experience #...
"Professor Brian Cox at BETT 2020" by p_a_h is licensed under CC BY 2.0
commons.wikimedia.org/wiki/Fi...

[@georgepalmer5497]

Seeing that the nearest star to earth is 22.8 trillion miles away, and there are more stars in the universe that there are grains of sand on all the beaches and in all the deserts in the world, the universe is close enough to infinite to me.

[@AshesRising]

The nearest star to earth is the Sun at 93 million miles away. I love your comment regardless.

[@AdamThoba2]

@@AshesRising wrong

[@AdamThoba2]

Alpha centauri is 4.3 light years, each light yr is 14°12 (14 trillion or 14 thousand billion miles) so 56 trillion not 22 or sun at 93

[@juanstepbehind]

@@AdamThoba2 lol you know the sun is a star right?

[@georgepalmer5497]

All the reputable sources I have found say that one light year is 5.7 trillion miles.

[@fransmars1645]

I think the point is that the observable universe is so stupendously big that it is almost pointless to try and imagine any additional space beyond. No doubt there is more, but what we can perceive is already quite a bit beyond what we can understand.

[@coolguy1127]

Brian Cox somehow has the ability to take the incomprehensible nature of the ever expanding infinite universe and boil it down to something I can almost understand. Him and Neil are some of the universes best gifts to us.

[@BantonOrg]

Which basically means they have nothing to tell us factual. Is the universe infinite....... lemme just hop on a bus and check. ffs

[@TheSunTheSea]

Neil sucks. He’s a celebrity scientist like Bill Nye. Brian Cox is in a different league

[@coolguy1127]

@@TheSunTheSea Bill Nye has been saying the same thing since the 90s when he had his show on PBS. He hasn’t changed his message since before he was popular.

[@misterPud]

Er...last bit I no understandings? 'Ate the universe?

[@SteveCarras]

Of course it isn’t the famed character actor from RED EYE 👁️ with Rachel macadams and many other movies 🎥

[@markmd9]

Many can't understand infinite universe while I can't understand a finite one. When ever I imagine an end, the next question I have is what's behind it.

[@captainplacard9666]

Amazing! Someone using their brain for more than a hatrack. If the universe is infinite then there are an infinity of particles out there, which is a logical and mathematical impossibility.

[@gravy4708]

​@@captainplacard9666 Maths and Physics don't exist proportionally in every place and at all times for an entity like universe.. Our laws of Mathematics and Physics might very well be limited to only our own planet and solar system. Everything we know about things outside our solar system is based on estimates and guesses using our planet's laws. What if the laws are different in other places (which very well is possible as there are extremes like quasars and pulsars in the universe, even the entropy) So in short, everything is a guess using our own laws. And our laws can't define everything. Either all our calculation is 100% correct about the universe or it's 100% wrong, and I believe we are not purely correct, because even our current laws can't define more extremes we find in the universe properly.

[@fromthehills2272]

13 year old boy running it from his bedroom

[@johnathanmartin1504]

@@captainplacard9666 That is neither a logical nor mathematical impossibility. To say such would be to say that infinity is mathematically impossible, which is demonstrably false.

[@f1analyst449]

It must be created bij a infinite God.

[@Parkerlee1000]

The more I learn about space the more I want to learn its so fascinating.

[@TheFirstCalled.60AD]

Mate, I would want to learn more about space too, if I was an Arsenal supporter.

[@Unholygamewinner]

@@TheFirstCalled.60AD 🤣🤣🤣hahaha

[@Luulewis]

It’s only fun when your not forced too

[@afcandy14]

coyg 💪

[@TheFirstCalled.60AD]

Ryan Rodriguez... Most probably a posh Arsenal supporter, has 2 name's. Parker. Like Peter. See me, I grew up on a council estate. I can t spell . We grew up with Chaz n Dave. It's my birthday

[@xElNinoo]

Its always a humbling experience to think about the universe, and its enormity, or infinity. We humans are intelligent beings, but not enough to comprehend the universe. Brian Cox is incredible to listen to.

[@redblade8160]

xElNinoo You're certainly "not" intelligent if you listen to Brian Cox!

[@Hello-uv3nz]

@@redblade8160 Curious to know, what is your belief on our universe and what people do you listen to?

[@alexandermattock8300]

The universe is not infinite, the only thing that is infinite is nothingness, the place where nothing exists, but because nothing is there it doesn't actually exist. Therefore the universe can expand into the nothingness creating a bigger universe because there is nothing there to stop it. It's a bit like numbers, once you have counted to the highest number ever, there is always a number that comes after it

[@paintball130]

i can kind of wrap my head around space being eternal and infinite. What really mind fucks me every time I think about it is where everything came from and why things are the way they are. Why do elements like iron and carbon exist? Why do electrons and protons even exist? why when you mix hydrogen and oxygen together do you get water? space being an endless void of nothingness makes sense to me. When you throw in chemistry and physics it all just completely blows my mind

[@moshedayan2810]

What for Chrisake is FOREVER ??? How can infinity be imagined?

[@alexandermattock8300]

The universe is not infinite, the only thing that is infinite is nothingness, the place where nothing exists, but because nothing is there it doesn't actually exist. Therefore the universe can expand into the nothingness creating a bigger universe because there is nothing there to stop it. It's a bit like numbers, once you have counted to the highest number ever, there is always a number that comes after it

[@queendoubleboy]

I like the new depictions. The video is quite realistic and simply told in an exciting way. Many thanks Mr. Cox and Team.

[@ThisisYoungQ]

One fact we all know is that we'll never know it all 🤷

[@mcbikeman5673]

try telling my wife that because she seems to!

[@rigelmoon9030]

I've forgotten more than I ever knew.

[@neilpike6758]

Some people think that space is a vacuum, they are like flat earthers, misinformed and fooled.

[@asprywrites6327]

Looks like I'm marathoning Brian Cox today! I've known of him and his work, but for some reason, he really callled out to me today. I'm elevating him on my Best Physicists List.

[@davidregi7571]

Not as good as einstein

[@hetrodoxly1203]

@@davidregi7571 Does he have any recent videos?

[@davidwaddington9414]

he has only read books and attended lectures and read books that you too can, nothing smart about that !

[@PXO005]

@@davidwaddington9414 watching and reading and actually understanding are two different things

[@nuntana2]

@@davidwaddington9414 lol. I dunno one has to be pretty smart to gain BSc in physics + a Phd. It is notoriously difficult. He’s also a professor/particle physicist and author of many books on these subjects. But it’s alright, some random nobody on KZbin who thinks he can read pits himself in a similar bracket. Again, lol. Don’t give up your day job. As for Einstein, goes without saying, but he also made monumental errors and was not particularly great at articulating himself.

[@sammysam2615]

I'm not sure if I'm too stoned or not stoned enough to listen to Brian Cox. That's not an insult. He literally blows my mind every time he speaks

[@KP-tn9cq]

Lmaoooo. I relate to this comment so much. Thanks for the laugh. 🪐 🛸 🌙 🌎

[@K-munz]

He somehow manages to sound intelligently confused 😂

[@mikew5144]

The most mind boggling part is how much of this is still just estimates, guesses, theories or flat out immeasurable

[@codinghusky5196]

No. The most mind boggling part is how these pieces of meat stuck on a little speck of nothing in some forlorn corner of it all managed to ACTUALLY figure out.

[@Metso-ateco]

I struggle to imagine space ending........it just "is" what else could there be if space has an ending.....?

[@misterPud]

Well yes that's why it's called space....it's so unimaginably huge, the only way the scientists can work out how far away everything is ...is mathematics... Cheers.. Brian ..ex cabby who used to pick-up Dr Maggie Adrienne Peacock..co hosts the wonderful record breaking t.v. show ...THE SKY AT NIGHT.. P.S . Lovely lady..x

[@NatMart9394]

Know one knows and know living man ever will. Scientists will keep claiming whatever you want them to, as long as you keep paying them. At the same time they keep saying that they’ve been destroying the planet for centuries. But no probs, they claim to be able to correct it if you keep paying them, infinitely.

[@misterPud]

@@NatMart9394 sorry but what are you talking about? You makey no sense... Well of course man is destroying the planet.. And thank goodness we've got scientists who can enhance our lives by their meticulous studying of the subject in matter and quite openly admit if their theories are wrong....unlike some huge organizations/ religions... Thankyou goodnight Much love x

[@iitzfizz]

the scale of the universe is just mind boggling

[@leighjordine4031]

If I have a feather in one hand and rock in the other which one hits the ground first.

[@johnbatch9276]

You are right fizz twinkle twinkle little star i like keeping it simple ha 😉

[@sparkywatts3072]

That's a question that has haunted me most my life! When I first learned of the solar system, galaxies, and the universe I was told the universe was infinite. Just the word infinite makes me queasy. I was happy to hear Brian say nobody can visualize infinite because I've tried for 60 years and haven't wrapped my head around it yet.

[@nenmaster5218]

Many explore Science, but right now we need more who debunk Anti-Science and fight Science-Denial, as those things are rising. Please, Fans of this channel, go and start from his Coverage of the Discovery-Institute and go from there.

[@nenmaster5218]

@cake fart I genuinly wanna hear the opinion of Random People on the internet, an opinion on "Some More News" newest videos. He does such great Research and calls out the Flaws of Goverment and History so well, i really want more Peoples opinions, so excuse the Randomness of me asking-around. (Especially Science-Fans is who i wanna ask)

[@markmd9]

I have the opposite problem, I can imagine infinite repeating universe but can't imagine an end. Because the next question I have is what's behind it.

[@davel9514]

If you wanna see infinity, search for the "Mandelbrot Set"

[@fluentpiffle]

Necessity and plausibility are your friends when genuinely interested in real things.. spaceandmotion

[@PlanetXMysteries-pj9nm]

I can't express enough how grateful I am for your channel. Your videos have helped me understand complex scientific concepts in an easily digestible way

[@Zuzu01]

I love sitting at the park or the beach, or somewhere quiet like a library or study hall and just think of all the unanswered question that have puzzled humanity. I let my mind go and see if I can figure out the answers. I believe I will figure out some of them one day.

[@johnbatch9276]

I like sitting in the park on a summer day eating ice cream

[@Incog2024]

I like sitting on the beach and drinking lemonade

[@johnbatch9276]

Good luck the answers are out there

[@alexandermattock8300]

The universe is not infinite, the only thing that is infinite is nothingness, the place where nothing exists, but because nothing is there it doesn't actually exist. Therefore the universe can expand into the nothingness creating a bigger universe because there is nothing there to stop it. It's a bit like numbers, once you have counted to the highest number ever, there is always a number that comes after it

[@Redkey7]

Wild to think that everything we have ever recorded and learned about until today will just be common knowledge to high schoolers in 200 years

[@geemanbmw]

Imagine in 2200 years 🤷‍♂️

[@callumhedley7117]

When the earth doesn't have ice caps and zoo's are museums because half the animal kingdom are on the brink of extinction. And they are taught how stupid we are

[@geemanbmw]

@@callumhedley7117 that could very well happen

[@ketchup5344]

If there's still a planet here 😅

[@mtgradwell]

@@geemanbmw In 2200 years it will be the most hilarious joke known to humanity.

[@neuvocastezero1838]

Brian Cox has such a nice presentations style, my current favorite "popular" scientist.

[@swbrl2843]

Why popular in quotations marks?

[@neuvocastezero1838]

@@swbrl2843 Because "popular" can mean different things to different people, especially when applied to scientists (i.e. many people couldn't name a popular scientist).

[@santosh-vh6xx]

Also Brian Green & Michio Kaku.

[@sassa82]

@@santosh-vh6xx all three string cult-theorist.

[@albertjackson9236]

We do not know if the universe is infinite, however, we do know that as far as we can see, there is no indication that it ends.

[@MrCarpelan]

But saying it's infinite would contradict everything we know about reality. We'd have to throw away everything we know if that were the case.

[@Jack-gn4gl]

@@MrCarpelan everything will be thrown out eventually

[@dennisgalvin2521]

Yes there is, it's expanding.

[@alexandermattock8300]

The universe is not infinite, the only thing that is infinite is nothingness, the place where nothing exists, but because nothing is there it doesn't actually exist. Therefore the universe can expand into the nothingness creating a bigger universe because there is nothing there to stop it. It's a bit like numbers, once you have counted to the highest number ever, there is always a number that comes after it

[@rachelbrinkley3240]

It amazing to think when i was born the telescopes of the mid 70s were lucky to see a few billion light years. Now there up to over 60 billion light years now. I can't wait to see how much further the next generation of space telescopes will extend out the range😊😀

[@georgepalmer5497]

They say the James Webb Space Telescope will give us a pretty good idea of whether or not other life exists in the universe. I don't know which scares me more: there is, or there isn't

[@rachelbrinkley3240]

@@georgepalmer5497 I am sure were far from the only scummy types lurking out there😃

[@georgepalmer5497]

What exactly are you trying to say? You left a word out of your sentence.

[@georgepalmer5497]

You're right. I'm far from scummy. Scummy is as scummy does. I don't invade people's privacy and then judge them by something that is none of my business. I don't lie to people about things that are real and things that affect them. Who is the real scummy person here?

[@georgepalmer5497]

When I watch them, they are knowingly in front of cameras that broadcast their performance to millions of people. When they watch me they are invading my privacy in a primal way, but they're too brainless to understand that.

[@ldchappell1]

It is a bit frightening to ponder a universe that has no beginning. But only because we use time to structure our existence.

[@anabananin9848]

It would me frightening to think of universe as beginning/starting from nothing with something exploding and chemicals forming from nothing.

[@leighjordine4031]

@@anabananin9848 it's fucking amazing that you actually believe that.

[@havenbastion]

We exist at a particular place, time, and scale.

[@anabananin9848]

@@havenbastion 'Time' is there to confuse people. Time is creating of humans and is measured by number of times our Earth turns and goes around the sun. That 'time' has nothing much to do with universe. It only our measure. If there is intelligence they would probably measure time totally different. It could be meaningless to them. If they have other ways to regenerate their bodies they would use that to count time of regenerations etc.

[@markmd9]

@@anabananin9848 time is fundamental. Every intelligence will invent it. And it will still be relative.

[@camillacalhoun1089]

I started the pandemic following Brian Cox and am a huge fan of his work and his efforts to communicate the wonders of the cosmos. Hope to hear more from you, BC!

[@camillacalhoun1089]

@Pale O'Pterix hah! Bad wordsmith! Busted!

[@wyskass861]

@Pale O'Pterix I was about to write this.

[@Bendy-oceans-lol]

Is it his work? How does his mind know these things about the cosmos? I knew at 4-5 years old the earth ain’t a wobbly ball. How old are you luv.Grow up Camilla. What the hell is wrong with you?

[@shawntipton5078]

Yes but he is not God and can only discover so much, I too like his documentaries - Wonders of the Solar System and Universe.

[@user-gk8uo1ci8v]

Absolutely fascinating, and with those sort of numbers as Brian quoted it's easy to see why people are troubled, by where we live and what else could there be beside us?

[@aranireland]

I love these videos! Whilst it's impossible to get your head around what i find intriguing is how everything is so organised in earth, the water, sand, beaches, life etc etc sun and moon near us not so near us etc

[@BobCalNor]

"Better Living Through Chemistry" the DuPont slogan.

[@geemanbmw]

The universe always being in existence makes me happy not upset. Atleast maybe we all come back around again.... where have I heard that before 🤔😬

[@Thuddy-Is-Here]

If the universe really is infinite than every single atom that makes up our body and brain absolutely will come back together at some point and we will be reborn. That’s a absolute fact. And as soon as we die it will be like a snap of a finger and we will be alive again

[@geemanbmw]

@@Thuddy-Is-Here I'm with that 👍🏼

[@baarni]

And to think that despite our observations of light that took 13 billion years to reach our telescopes from the photons perspective it travelled no distance in no time..... That is a mind bending thought....

[@nhlakafistozshandu5376]

Wow! What an interesting subject, with incredible analysis.

[@martinschell4212]

I went to see the lovely and soporific Brian Cox live in St David's Hall, Cardiff, in about 2019 🤔 His voice and the subject matter were so soothing that I nodded off. When I woke up I looked around, and both of the people I was with were asleep, as were the people all around me.

[@davidallott7089]

@Martin Schell he has got to be one of the best bull shitters I’ve come across in my life, believing him is like believing in the plandemic!

[@TheSamgopal]

This is a comment I made elsewhere but I will put it here too since I think this is quite an interesting physical/astronomical/philosophical/biological problem. I will try to describe my view of what "time" is: In the physical reality the only time is the present. However, the present of any given point in space relates to any other given point at the speed of light. The effect of this is that there cannot be a universal present where everything exists at the same time. For example, if the earth and the sun are separated by eight lightminutes earth's present and the sun's present are eight minutes apart in either direction. None of them is before or after the other, it's just a separation of causality. For me, this solves the problem with an infinite universe since it is not contained in a simultaneous present. It makes terms like "the observable universe" pointless as it becomes nothing more than an optical phenomenon. The concept of a "time-line" with a past and a future in addition to the present is entirely a product of the brain. In fact every process of the brain as conciousness, memories, language, perception etc is a tool in the process of creating the experience of time passing. But how can things be happening all the time(!) if there is only the present? Planets, particles and energy are allowed to move about because they travel across those points in space I mentioned earlier. And as they do that they enter that point's present which is separated from the previous position at the speed of light.

[@fluentpiffle]

‘Time’ is the human invented concept of measuring the motions of space.. spaceandmotion

[@ciretose2]

Very interesting theory of "time," which I also intuitively sense as a construct of our perception. Your theory makes sense to me on the level of relativity of "now" between two points in space at whatever distance. Are you using the speed of light just as a convenient reference unit of measurement in comparing the states of those two points, or do you see it as intrinsic to the shared reality of those two points? Also, how would your model explain the perceived "2 years" between the present when you posted your comment and my present reply?

[@PilatesGuy1]

👍👍Endlessly fascinating subject-thanks. Has anyone ever considered the opposite point of view? Instead of thinking of the universe (or universes) as unimaginably or infinitely large, maybe the universe if only pretty big and we (humans/human civilization) and our concepts are unimaginably or infinitely small. Maybe most intelligent civilizations are galactic cluster size and we are mere uninteresting molecules. Here's a fun question-if you think this might be true, what should we be looking for out there instead what we are looing for now? Extrapolating, how would we look for and eventually interact with a 'civilization 1 trillionth our size?

[@davidhardinge1214]

Thank you professor Cox for sharing your knowledge.

[@jago76]

Excellent. To assume the observable universe is the whole thing just perpetuates the history of wrongly assuming we are at the center of everything-- going back to the belief that the sun revolved around the earth. Each time, we learn we are wrong and the extent of the universe keeps expanding. Infinite or finite? Can our minds comprehend either possibility??

[@saramolet3614]

A universe that's been here forever is more frightening then if it had a beginning to me

[@ashmitthapa1678]

🤯

[@kerimvvm4812]

Only god is eternal the universe was created and had a beginning.

[@MrFragranceReview]

@@kerimvvm4812 you don’t have any answers anymore than I do. Stop pretending.

[@JasperRamonTulabot]

@@kerimvvm4812 Lol, "god".

[@madelynhernandez7453]

@@kerimvvm4812 what if God is the Universe then

[@georgechambers4617]

Well it depends on your definition of 'Universe'. If your definition of Universe is the black space in the Heavens between the Galaxies - then yes - it goes on forever in every direction possible, in my estimation. I mean where would it stop? Is there a wall preventing any further exploration beyond? If there is a wall - then what lies beyond that wall? The Universe is infinite.

[@iamBlackGambit]

No the universe is not infinite, that would mean its eternal as well. It was created. But the concept boggles the mind

[@Parkerlee1000]

@@iamBlackGambit if the universe is infinite that scares me massively as we only have a tiny scale that we call the observable universe😊

[@mattfowler7019]

Not unless you eventually loop over to the other side

[@BradWatsonMiami]

No, this Universe is NOT infinite. It had a beginning 13.77 billion-years-ago. The Infinite Conglomerate of Universes - Seal #1a of 7seals.blogspot.com - only the returned Christ & Albert Einstein reincarnated could produce that.

[@OmniMale]

@@iamBlackGambit where did you get it was created?

[@headmondronary2127]

I like the point of infinity as an option. It's a point that stretch's our understanding of thought and maybe lead to stronger understanding of many things. Understanding infinity seems to be impossible at the moment. A lifetime can be dedicated to it but unfortunately none of us live for eternity to see if our understanding is correct.

[@peterroycroft6433]

Stretches.

[@alexandermattock8300]

The universe is not infinite, the only thing that is infinite is nothingness, the place where nothing exists, but because nothing is there it doesn't actually exist. Therefore the universe can expand into the nothingness creating a bigger universe because there is nothing there to stop it. It's a bit like numbers, once you have counted to the highest number ever, there is always a number that comes after it

[@UROOZFATIMA190]

The more i research about universe the better version i see of myself . And i would like to say that know about our universe you will be highly fascinate by this thing .

[@dieterrosswag933]

If time is infinite then we existed infinite times. Its too much coincidence that we exist in the PRESENT for the first and last time. Its like winning lottery 100 billion times in row with the sane numbers

[@droid2645]

I love our universe..and these vids of course..

[@zKrazeM8]

You should only have love for the one and only; Allah!

[@yassine1273]

@@zKrazeM8 allah does exest only in your imagination

[@ronaldronald8819]

That just completely boggles my mind.

[@luisg5717]

I love how the unknown is simply something we dont understand yet. All we have to do is change how we observe something and we find answers.

[@adhamdahir6108]

No one will ever have the answer to these questions simply because death is promised, God is the only reasonable explanation.

[@garethmartyndavies2250]

Infinite or boundaries, the whole subject of the universe is so exciting , and like music can put your feel for life into perspective. Wow special and insignificant.

[@howtodoit4204]

I can’t hold my tears back knowing am part of this enormous universe.

[@MUSIC4TRUTH....]

Wait til you find out you're not.

[@kushking949]

@@MUSIC4TRUTH.... Na wait till he comes down from the speed lol

[@youwillbeloved8069]

You aren't part of it, you ARE IT without knowing

[@madelynhernandez7453]

To me its scary cause where the hell did we all come from, everything. Well never know

[@madelynhernandez7453]

@@youwillbeloved8069 I think this is what they mean. At least that is how I understand it.

[@user-pk8cl8jp2r]

I love your videos 💞

[@jonathaneffemey944]

Thanks so much for posting.

[@Primus54]

After listening to Brian’s discussion toward the end… the number of galaxies and then the average number of stars per galaxy… taken to the next level, the potential number of planets, it is very difficult to imagine there are those who believe Earth could be the only planet with intelligent life. It would be a genuine “miracle” for that to be the case!

[@harrywhittaker7563]

Well if the Earth is the only planet with life on it and the Bible is actually true, that would be the worst possible outcome in my opinion. But the evidence against the Bible is near enough infinite and the mass burning of all Bibles and other ludicrous religious texts is long overdue. However 95% of the world still clings to these fairy tales and they refuse to learn anything beyond those antiquated pages of violence and contradiction.

[@Primus54]

@@harrywhittaker7563 I’m always amazed by the words of people who do not understand the biology of human nature. That’s right… biology. There has never been a society, no matter how large or small, that has not had a biological need for religion and a life purpose greater than one’s self. Personally, I am not wedded to any particular religious belief. However, I am quite certain that there are intelligent powers greater than human beings and that the Universe is not some mega-giant cosmic accident. Thinking otherwise is the pinnacle of human arrogance.

[@jeffgaw]

@@Primus54 I disagree. There’s no such thing as a 'biological need' for religion. Yes, most (though probably not all) human societies have held some version of a broadly religious belief system. But how does that demonstrate a ‘biological need’? And how does it indicate that this intangible power you hold claim to actually exists? The evidence we have from studying ancient societies is that humans have believed in a huge variety of batshit crazy nonsense. Almost all of them are mutually incompatible, and almost all relate to their local environment. This indicates we have incredible imaginations, but doesn’t demonstrate any need for religion, let alone it being ‘biological’. What we do have is a need to understand and explain, because when we do understand something we feel safer and more in control. Without an explanation, there remains an uncomfortable and anxiety inducing void; a void that we fill using our human creativity. This is why we used to invent supernatural explanations for disease and the weather. Medieval doctors didn’t understand plague so they invoked God, or some other baloney. Now that we understand infectious disease, or lighting, no one invokes God as an explanation. Human nature leads us to feel safe with simple explanations, and we also feel safe sharing common purpose, beliefs and superstitions with our social groups. These traits would have been extremely adaptive in our ancestors, but they don’t reveal truths. People are still doing this today, creating explanations for phenomena they are unable to comprehend ourselves - hence Qanon and other conspiracies. Yes almost every culture has followed a religious belief system. The trouble is they are virtually all wildly different, incompatible and geographically specific. If there were some sort of cosmic truth driving this ‘biological need’ don’t you think religions would converge to be more compatible, and more universal in scope? And if there isn’t a cosmic truth in some way driving this ‘biological need’, why would a ‘biological need’ exist? There is absolutely no evidence of a ‘biological need’ for religion, but there are biological, psychological and sociological explanations for the preponderance and durability of religions. Read up on evolutionary exaptations and spandrels to understand how biology can adapt a particular trait, only for that trait to be co-opted by something completely different, like religion. You said this: “I am quite certain that there are intelligent powers greater than human beings and that the Universe is not some mega-giant cosmic accident. Thinking otherwise is the pinnacle of human arrogance.” I disagree, completely. You are basing your belief on a combination of two logical fallacies: ‘God of the gaps’, and the ‘Argument from incredulity’, and you’ve offered no evidence whatsoever. It’s you who is demonstrating arrogance: You profess knowledge on a fundamental idea, yet you can provide zero evidence, and as I’ve shown, your reasoning is flawed. Claiming you are certain about a fundamental truth, while being unable to demonstrate or justify that claim really is the ‘pinnacle of human arrogance’. You only have to look at history to see that.

[@robertbiggerstaff7527]

Infinity. How can there be such a thing? Even spookier…how can there not be such a thing?

[@KM-leons]

If the universe is 13.8 billion years old and it began from a singularity the universe cannot be infinite for obvious reasons.

[@alexandermattock8300]

The universe is not infinite, the only thing that is infinite is nothingness, the place where nothing exists, but because nothing is there it doesn't actually exist. Therefore the universe can expand into the nothingness creating a bigger universe because there is nothing there to stop it. It's a bit like numbers, once you have counted to the highest number ever, there is always a number that comes after it

[@RobDeManc]

Infinity is the best and only answer about the universe. It removes all other questions such as who or what was the creator...how old is the universe...where does it end etc...

[@MichaelZimingDong]

In another word, if the universe is not eternal, and finite, you must face the question of a beginning, a creator. Simple logical questions will start to contradict each other in the existence of infinity. Like Can you count to infinity? what is infinity minus 1? Therefore a finite universe is far more likely than an infinite one.

[@RobDeManc]

@@MichaelZimingDong Just because you can phrase a question such as "what is infinity - 1" does not mean it is a valid question that has a valid answer. It certainly does not support your conclusion that the universe is finite.

[@MichaelZimingDong]

@@RobDeManc and How did you came to that conclusion?

[@RobDeManc]

@@MichaelZimingDong Infinity is unmeasurable so asking what infinity - 1 is would be meaningless.

[@MichaelZimingDong]

@@RobDeManc You are actually making a good case for the impossibility of infinity. It shows that infinity is just a concept for us to cope on large numbers. And if infinity is a real quantity within the universe, it must obey the same rule as other quantities. such as 10-(10-1)=1. But ∞+(∞-1)=∞, which does not correlate with the reality within this universe at all. The only explanation is that ∞ is a concept, not real.

[@neilgc4943]

Very interesting, thank you! If gravity is pulling mass together and dark energy is pushing mass apart then it stands to reason that whatever is in between has to be matter.

[@krivvysann5091]

The thing that makes the existence of universe more interesting is that it is ever changing and non permanent. This is so fascinating in itself.😇🤠

[@7Earthsky]

Even if the universe isn't infinite, it's so big, it might as well be.

[@Ex_Nihilo777]

if something is not infinite and is only close to infinity then it is actually not close to infinity at all because infinity will keep on going while what is 'close' to infinity will keep on falling back

[@_Kid_Corpus_]

It seems to me that every point of observation - that which observes the observable - is itself a priori infinite. Infinity is a tacit quality of observation... of conception... of deduction. The very act of observation confirms - or at the very least implies - infinity. Only the observable is finite. Only materiality is finite - the measurable - that which we portray as space & time... whilst observationality transcends all that is finite.

[@fluentpiffle]

Genuine science confirms you are correct.. spaceandmotion

[@mosburgz]

the most fascinating thing imaginable. makes you feel quite small.

[@ethancircuitt1307]

This video is: ✔ Life changing ✔ Informative ✔ Inspiring ✔ Heartwarming ✔ Useful ✔calming ✔Enjoyable ✔ Other

[@Rikimkigsck]

I think Sir Roger Penrose is right. The universe has always existed and it's expanding forever thus it's probably infinite.

[@SuperYtc1]

But we know the Big Bang happened 13.8 billion years ago.

[@Rikimkigsck]

@@SuperYtc1 "The universe did not start with the Big Bang...There was actually a universe already existing before it and the Big Bang was merely the end of that universe" He added that evidence of that previous universe can still be observed today. "There was something before the Big Bang and that something is what we will have in our future," He added, "We have a universe that expands and expands, and all mass decays away, and in this crazy theory of mine, that remote future becomes the Big Bang of another aeon."

[@Rikimkigsck]

@@SuperYtc1 This is what Sir Roger Penrose believes.

[@Rikimkigsck]

@@SuperYtc1 Imagine 13.8 billion years is nothing only 3 sun years old and our galaxy is one of the oldest galaxy in the universe. I think it makes perfect sense what Penrose says.

[@SuperYtc1]

@@Rikimkigsck There is literally so much evidence for a big bang/big expansion that saying there wasn't is just silly. Use what the evidence is telling you. The idea of a universe existing before the big bang ending and creating this universe has next to no evidence, so if you believe that it's more faith at this point, no one knows.

[@misterb6416]

I believe that there on an infinite number of parallel universes all with exact copies of every being on every planet in these universes. However, time is different in each. I believe this helps explain that feeling of deja vu. When you experience that feeling in this universe at this time, it is a memory of something you did in the universe the you were in before. Also, things that you do right now in this universe at this time will be a feeling of deja vu for your exact copy in the universe that is behind this one. When our body dies in a universe your consciousness leaves your body and joins you again in another universe. This exact copy of ourselves really isn't that exact, by exact, I mean your consciousness is exact but your body and life experiences are different. I often have dreams or feelings in a POV thought of me living in different times in different places, they are quick dreams or thoughts. One I have more than others is my POV of walking up some cement steps to a door with blinds on it, its an office of some kind. I can't explain it but I sense the time is in the 1950s in North Carolina, I was not born until 1963 and I was born and raised in California and have never been to North Carolina. I also get feelings of me living in the south some place in the 1930s. I'm in a kitchen looking out the back door to a very large back yard with green grass and I'm frying chicken and getting ready for a big back yard party. These feelings are so vivid. Life is strange.

[@LittleTut]

And dreams. Who are these "real" looking people in my, our dreams, streets, homes, buildings, situations? Another part of us living some place else maybe? So interesting. 🤗

[@LittleTut]

@@TakumiKhashi Khashi, you very well may have lived many many lives. 🤗

[@Krytern]

I'm sorry but having dreams about other lives doesn't mean you have had other lives, neither does it mean you're somehow detecting yourself in other universes. Really strange logical leap which is the kind of logical leap religious people use.

[@Krytern]

@@LittleTut I doubt it.

[@misterb6416]

@@Krytern Not really saying meaning dreams, more like thoughts that come in flashes, even when you're awake.

[@quinncampbell9255]

Love listening to Brian cox Even if I don't know what he's talking about, or I don't agree with. Cool video ans I love this new pr tour DR cox is doing rn, seen him on 10 other youtube videos or podcasts, I guess he has a new book coming out or something else he's getting paid for lmao

[@connerdixon673]

The universe is incomprehensible. I wish we had more answers. And even with the answers we do have, it’s impossible for me to wrap my head around how unimaginably big the universe is. Even if it is finite what lays beyond the Universe? The fact it probably just goes on and on forever is crazy

[@theo9952]

In either case it is so immensely huge, that infinite or not, makes no difference. We will never know the end of it.

[@justsomeguy4260]

If we know that it's infinite then the possibility of advanced alien life is guaranteed, it's also technically guaranteed that there's a exact clone of you somewhere It makes a colossal difference

[@scottbullock3045]

There is a reason why so many people are ignorant to the cosmos... nobody looks up anymore! Everyone looks DOWN at their phones these days. Astronomy is going to struggle to find the next generation of Brian Cox like people out there. My sympathy for the future of this occupation.😢

[@Chandler490]

Woke media wanting to cancel space travel because of climate change is going to hurt advancements in science

[@xxDOTH3DEWxx]

There are more professionals looking to the stars than ever before. What do you mean

[@scottbullock3045]

@@xxDOTH3DEWxx Hope you're right.

[@scottbullock3045]

@@matthewchicago5288 I wish lol!

[@anon4854]

Yeah, okay boomer. You realize that of the 1 millions views this video has a substantial number of those views would have originated on phones?

[@-User.-]

I can't wrap my head round the possibility of space being infinite, There must be an end. It's crazy to think what happened before the big bang, It's almost impossible to know?

[@fluentpiffle]

"But maybe that is our mistake: maybe there are no particle positions and velocities, but only waves. It is just that we try to fit the waves to our preconceived ideas of positions and velocities.The resulting mismatch is the cause of the apparent unpredictability." (Stephen Hawking, "A Brief History of Time" 1988) spaceandmotion

[@fluentpiffle]

So here is one of the main problems.. People have a very poor understanding of what the word 'infinite' actually means.. This is not any kind of 'fault', but just that we have evolved within the confines of what appears to be a finite environment, and we thus try to look at things in finite ways, also justifying those 'finite' thoughts. When I first approached the 'problem' I had the same difficulties, so it takes our minds a lot of effort to reach another perspective of understanding, but it IS achievable.. Firstly, there cannot be more than one 'instance' of infinitude, otherwise a secondary 'thing' would render them both 'finite'. So we are describing a 'oneness'.. Also, it can have no 'beginning' nor 'ending' as these would also necessitate a secondary 'thing' (or the utter nonsense of a 'nothing'!). Then, we have to admit that it can only be the one thing that interconnects all other 'things', and we deduce this to be 'Space', necessarily.. All references to 'size' or 'direction' do not apply to the nature of infinitude, and thus have no relevance to our understanding of the true nature of existence. 'Measurement' has limitations.. When we point to any position in Space, we effectively create a 'beginning' to any subsequent forms of measurement, which only has relevance to the entity desiring to understand said 'measurement'. This does not make it a feature of the nature of reality, only a desire from a Human perspective.

[@toti_key]

“The matter of the Universe is simple. The simplicity is that we do not have the capacity to understand it.” -KM

[@kevincoshner310]

Exactly! Well said.

[@peterherrington3300]

Finally a simple & accurate answer. If we ever even begin to understand it , it will take longer than the brightest minds can imagine with our current knowledge.

[@kevincoshner310]

Kastriot, wonderful answer!

[@toti_key]

@@kevincoshner310 Yeah! Thanks for your reply

[@toti_key]

@@peterherrington3300 definitely

[@theavannooijen6621]

You can learn so much about astronomy by watching these videos! Also understandable for " absolute beginners" in the field!

[@Krytern]

@@deltalima6703 What has that got to do with what he said?

[@deltalima6703]

Comment ended up in wrong thread i guess. Deleted.

[@Bendy-oceans-lol]

You’ll learn fuck all from these videos, or anything mainstream. I should go thoroughly analyse where you think you live right now.

[@kenharvey8946]

I am reminded of Katha Upanishad. ' He who think he knows, knows not. But he who knows ,he doesn't know ,knows. Also the external mystery. ' The tongue has never soiled it '

[@wheel1775]

I love the hypothesis that we exist in a black hole. And that there are tens of millions of black holes we can see. It’s conceivable there are tens of millions more black holes outside of ours. It also answers why we can never escape our universe. It gives us boundaries but also makes reality infinite at the same time.

[@TheOldCatFunt]

My pondering mind has often grappled with the fact that if there is a boundary around the universe, what is on the other side?

[@SuperYtc1]

There is no edge, you just end up back where you started with. Just like an ant travelling in 2D around the Earth's surface would end up back where it started, if you travelled in 3D through space you'd end up back at Earth.

[@Nitrous0x]

@@SuperYtc1 That would only work if the Universe plane is shaped like donut, which hasn't and will probably never be proven.

[@SuperYtc1]

@@Nitrous0x The universe appears flat to us but that could easily be because we're only looking at a tiny slice, not big enough to capture the curvature. Just like an ant thinking the Earth is 2 dimensional by observing the distance between the top and bottom of the garden and seeing no curvature. Our universe could be like that but just scaled up a dimension. We maybe have to look harder in 3 dimensions to see it's actually 4 dimensional.

[@leighjordine4031]

It's amazing how people believe in all this space universe stuff but are incapable of making the most obvious observations about where they live. People will believe anything if comes from someone who they believe to be an authoritative figure.

[@Nitrous0x]

@@leighjordine4031 who are you even talking to?

[@thatflightsimguy]

Either it is infinite or finite. Both incredible.

[@KM-leons]

If the universe is 13.8 billion years old and it began from a singularity the universe cannot be infinite for obvious reasons.

[@DaBIONICLEFan]

@@KM-leons Not true. Space is expanding faster than light (and accelerating) which means it is impossible to ever reach the edge of it, there will always be universe ahead of you even if you could travel forever, so it could well be infinite that sense. And because nothing can travel through space faster than light, the Universe is infinite to everything that could ever exist within it.

[@KM-leons]

@@DaBIONICLEFan Just because the universe is expanding at a speed higher than the speed of light and cannot catch up with the edge of the universe it's infinite? Did you successfully finish high school? I am sure you need to go back to school and you should learn the meaning of "finite" and "infinite".

[@DaBIONICLEFan]

@@KM-leons Dude, it's exactly what infinite is. If you travel through something, and even in an infinite amount of time never reach an end (as is what happens in our Universe because of its expansion), that IS infinite. Because there is always space beyond you, no matter how fast you travel or how long you travel for. The Universe has also been measured to be perfectly flat with an absolutely miniscule margin of error, which only bolsters further that is infinite. Now just because you don't like that, it doesn't mean you have to be an arsehole to me.

[@KM-leons]

@@DaBIONICLEFan You are a funny man living in a world of imaginations.

[@ralphbland6581]

Absolutely brilliant and mind boggling

[@jakethepitador2558]

When people talk of the universe, they always seem to be talking about the visible universe, you know - all the "stuff", the debris from the big bang. What interests me is all the blackness, the "black void" that all that "stuff" (galaxies, cosmic dust etc) is expanding into. Has that black void always been there? Does it just go on for Infinity? Is there a point where it ends and you punch through to a parallel universe? It's all so strange. I don't think science has an answer for this.

[@alexandermattock8300]

The universe is not infinite, the only thing that is infinite is nothingness, the place where nothing exists, but because nothing is there it doesn't actually exist. Therefore the universe can expand into the nothingness creating a bigger universe because there is nothing there to stop it. It's a bit like numbers, once you have counted to the highest number ever, there is always a number that comes after it

[@juliocasim4330]

A good video should everybody to watch it is interesting.

[@flyersluver4eva]

Well yeah it’s infinite. Let’s just say there was a brick wall at the end of the universe..well, what’s beyond that brick wall? That’s the beauty of it all. It’s a never ending book

[@mozerm]

When I think about this I can't help but wonder - what the hell is going on...because we don't understand it...at all.

[@shoo-lee]

in the video above, Mr. B. Cox explained that the universe is flat. If the time vector goes back to the point when the universe was dense and hot, will it still be flat, or has it flattened over time?

[@tweetybaybe]

This man is such a genius. I could listen to him speak forever about this!

[@Bendy-oceans-lol]

Believe me he’s not a genius. He’s a con man living a life of luxury millionaire while spewing out garbage on a tv screen to the masses. KZbin... beyond the imaginary curve.. Wake up

[@panguzx235]

The universe can not be eternal. The universe is bound to space, matter and time. The universe is not eternal because time is finite.

[@Bendy-oceans-lol]

@@panguzx235 full exploration of our earth first before anyone continues to talk garbage. That is all. Thank you

[@panguzx235]

@@Bendy-oceans-lol What premise do you seem to be disagreeing with?

[@Bendy-oceans-lol]

@@panguzx235 lol. The whole shebang. You still think this is our world 🌎??? You have a lot to learn

[@spy2778]

I believe that the most exciting time in the history of any living civilisation, is when they can explore the galaxies as easily as we explore holiday destinations on our planet today. Oh how I would love to live in that time.

[@balopls5444]

Really

[@fastica]

Homo Sapiens are 300K years old and you were born a few years after cars and air travel were created. Enjoy living on this time.

[@michelle_sea_view]

Very interesting,, Thank you.

[@carlw.8671]

If there is a beginning there is an end... but us as humans will never understand

[@Yorichi_01]

We think we are limitless 😂

[@ospyearn]

If the universe once had the width of a planck length, and then expanded into a grain of sand and then into an orange, size-wize, how could it after a mere 13 billion years have become infinitely large, or how could it ever grow from finite to infinite? The universe is not a divirgent series, or if it were, it would still be finite as long as it wasn't infinitly old.

[@wulphstein]

Thank you for being smarter than the propaganda.

[@callumhedley7117]

I think it's more meaning can it expand forever.

[@pdj2995]

You are conflating space and the universe….. these are 2 different things…. Space is finite, as you could reach the end of it before it expands further if you had the technology to fly faster than the speed of light within the UNIVERSE we live in….. and the universe consists of space, matter, and everything else that is beyond that…. As we still don’t know what it is beyond space itself, which is why we named it dark energy… so dark energy is actually the never ending substance or concept that we know and love as infinity, it is truly the only infinite “thing” we know about, and guessing what is beyond that is borderline insanity, as even if there was something else, it too would be endless and so forth.

[@ospyearn]

@@pdj2995 Your notions of universe, space and dark energy seem to me somewhat unusual. Etymologically "universum" means "every thing turned into (versum) one thing (uni)". In modern cosmology everything is understood as being contained in space, and when the universe expands, it is actually space that expands with the things it contains. The expansion of space is not subject to the lightspeed limit, thus two things can, in virtue of being in space, have a relative motion faster than the speed of light. The notion of dark energy was introduced to "explain" the observed accelerated expansion of the universe. By general relativity alone, the initial expansion referred to as the Big Bang should have slowed down, but as the expansion of the universe was observed to be accelerating, Dark Energy was the name given to whatever causes the acceleration.

[@pdj2995]

​@@ospyearn you said so much without saying anything at all..... not sure if you are those type who think they are smart as they confuse themselves endlessly with unnecessary logical conclusions and scientific words, but you most defiantly seem to be that kind from what your reply is and what the videos you post are about.... therefore i am going to give you a chance as you overall seem to have a rational vibe, and i will try to engage with you in good faith about everything, if you could just kindly make a neat list explaining what and why i am wrong about and please try and explain them just a little less complicated, thanks

[@guardiantransit7527]

I believe the Webb telescope will just see many more galaxies. This will cast doubt on the big bang

[@joewalker1501]

How will it cast doubt on the Big Bang?

[@tonykelpie]

Science is about observation not belief. Hopefully not long to wait

[@havenbastion]

@@joewalker1501 Because it will show more of the same, meaning that the cosmic background will be the same at this new higher level of resolution. I don't know what the big bang theory predicts with regard to what the JWST will find, but i also predict they won't find it.

[@Prrocess]

That's not how light works

[@sanketnaik2082]

I can listen to Brian all day..

[@wiv2631]

If the universe or cosmos is finite, what is its barrier and what lies outside its barrier or limitation? I cannot imagine anything but infinity. It is like existence is within, for example, a ball or a box, if so what is outside that ball or box?

[@alexandermattock8300]

The universe is not infinite, the only thing that is infinite is nothingness, the place where nothing exists, but because nothing is there it doesn't actually exist. Therefore the universe can expand into the nothingness creating a bigger universe because there is nothing there to stop it. It's a bit like numbers, once you have counted to the highest number ever, there is always a number that comes after it

[@craigcalgarydude5270]

is it possible that the "inflation" we "know about" was actually the first sentient being looking up into the sky and forcing the "wave" universe to move to a state where everything had to "settle" because it was observed? Sorry not using the right terms I know. What I mean is, like quantum physics where nothing is "set" until observed.

[@GJohnson1981]

I hear what your saying, and I like where your head is at..... very interesting...

[@uninspired3583]

No, in quantum physics "observation" is just interaction with an outside system. Sentience is not required.

[@buzzrocket1]

This is a conflation of the meaning of the word "observed". Observation is probably better termed as an interaction between wave functions that causes the wave to collapse. Sentience has nothing to do with it.

[@orlovsskibet]

No.

[@JoshPillault]

Dear God I literally have tears on my face and then just "And THAT'S it" and end.....thank you, this was beautiful

[@nenmaster5218]

Many explore Science, but right now we need more who debunk Anti-Science and fight Science-Denial, as those things are rising. Please, Fans of this channel, go and start from his Coverage of the Discovery-Institute and go from there.

[@johndough5192]

Lol oh stop

[@BatterySonic]

The interesting thing is that we still have no way of knowing exactly what is inside of a black hole. That being said, we do know that anything that crosses the event horizon of a black hole is broken down without losing information (in theory of course). What if all of the matter in our universe was recycled from black holes. Taken from one area and spit out elsewhere after being immensely compressed?

[@kiranbalakrishnan3826]

Very nice and informative

[@nazart7830]

I freaking LOVE Brian Cox voice

[@ketchup5344]

You need to get out more 😅

[@leepd1]

What is abundantly clear, is that when we are talking numbers of this magnitude, it is supremely arrogant of the human species to remotely suggest that life only exists on our tiny little planet..

[@mattmcmillan3573]

1970 to 2022 is the same as 1918 to 1970

[@pdj2995]

Yes it’s called the FERMI paradox… it is actuallly part of scientific theories that predict we may be the first to ever exist, somewhere in between, or the last to ever exist, either way, whether it’s then, now or the future, aliens must exist.

[@leepd1]

@@pdj2995 Yep.. life on this planet is proof of life in outer space.. so it stands to reason there is plenty of it out there.. only those who think we are the centre of the universe are denial of this basic fact.

[@pdj2995]

@@leepd1 yep... thats mathematics... these people dont understand that if they believe 2+2=4 then they must also believe aliens exist.. it really is that simple..

[@stewiesaidthat]

@Lee Davidson if the universe is infinite, then the universe has no center; therefore, every point in the universe is the center of the universe.

[@jasoncurran2179]

Dad and me always talked about the universe could be never ending, i also think maybe but even when we pass on our energy contines on in the universe possibly due to the sheer size of the place just in a different form

[@jamesphilipson1289]

I feel like it must be finite, just so expansive we couldn't comprehend it. The bit I can't get my head around is that space itself may go on forever. If you continued in one direction at 1000000000000mph for 10000000000000 lightyears, the only way to get back to wherever you've left from, would be to go back exactly the same way

[@GamingowyTata]

I'm a simple man, I see Brian Cox and I give a like.

[@nagazaki2596]

I believe we still need a million more years of human evolution and technological advancement to truly answer this question. What we can see and what we know might as well be but a single drop in the ocean.

[@brucewayne2956]

I'm afraid we won't perdure as species for that long.

[@Carlking3]

We won’t be around for half that long ..

[@nagazaki2596]

@@Carlking3 Everything is possible. We might go extinct in the next 10 years, or we could very well manage to colonize the entire universe. A billion years from now we might still be around.

[@rezadaneshi]

You can infinitely divide remaining piece of something by two as infinity and you can infinitely divide remaining pieces in two as infinite infinities within infinite. There is a philosophical infinite and a scientific infinite. Scientifically based on our math, nothing can be infinite so the million years won’t change anything. But human life can be infinite in the mind of a fruit fly. If that fruit fly became intelligent in the next million years, it could look at our lifespan like how we understand the lifespan of the stars. We will never find Scientific infinity in a number, but in a concept, that we can circle a globe for infinite number of times.

[@nagazaki2596]

@gooberboots We are all different, some can't think beyond their church, other dream with exploring and knowing everything our amazing universe has to offer.

[@inboudayo]

I'm confused, he says we estimate the age of the universe based on the speed that galaxies are moving away from us. But the further away they are, the faster they're moving...?? How can we put an age on the universe when time is relative?

[@nedcrosby2704]

Speed at which the universe expands(recessional velocity) is proportional to the distance the object is away from us. The age of the universe is considered to be when all these objects were at one point I.e no distance between them. This is the Big Bang. This time is also the reciprocal of the constant that connects this recessional velocity and distance.

[@Krytern]

It's easy to think about. Galaxy A is twice as far from as as Galaxy B. Galaxy A is moving from us twice as fast as Galaxy B, because there is twice the amount of space between us which is expanding. It isn't relative in the way you're thinking.

[@seraphimberlin]

If anyone have any idea on where to purchase the image despicted on the 6:40 min mark i would be immensely greatful ! Need a poster of it asap !

[@digigarb]

How lucky we are to be alive to be this aware of how our surroundings work

[@RegisteredNurse926]

This is ten percent luck Twenty percent skill Fifteen percent concentrated power of will Five percent pleasure Fifty percent pain And a hundred percent reason to remember the name

[@ayyy9017]

@@RegisteredNurse926what the fuck

[@higgy4508]

Don't think it's actually possible to blow my mind any further than it has been blown after watching this video

[@leewainwright3526]

I think if we knew more about the universe it could fry your brain imagine the complexities we as humans aren't designed to understand this kind of information

[@markappleton4955]

Watch roger penrose.

[@petersimcox4745]

Great Video !!!.

[@robc4440]

Absolutely mind blowing.

[@spbalance]

It's much more difficult to imagine a finite universe than an infinite one in my opinion.

[@mr.schnitzel4654]

If the universe is finite than we lived before, and will live again: kzbin.info/www/bejne/jX7CeqSfltifp8U&ab_channel=NotOnlyScience%21

[@madelynhernandez7453]

Not really. If a being like God exists and it is eternal then it could have given it all a beginning.

[@spbalance]

@@madelynhernandez7453 A finite universe actually doesn't make any sense. If you say it ends at some point, it only ends because something else begins, which again means there's more stuff outside of its boundary, and if there's more stuff then it's is a direct contradiction to a finite universe.

[@orbit1894]

@@spbalance finally someone making my point. God, its incredible how many people just stop thinking after saying "there is nothing behind it" like wth? Nothingness is also something, in order for something to "end" there should be the beginning of something else behind it. Like saying there is nothing behind the walls of my house.

[@alansteinle7632]

Quick question. If the observable Universe began from a singularity, is 13.8 billion years old and nothing travels faster than the speed of light, how can the Universe have a radius of 46 billion light years?

[@callumhedley7117]

It was expanding faster than the speed of light. Nothing now can travel faster that we know about

[@TunaFreeDolphinMeat]

Nothing "in" the universe can travel faster than the speed of light. But the furthest parts of the universe or space itself that we can observe and measure are moving away much faster than the speed of light. And accelerating.

[@tilenkobe]

Because the universe expands from each point in space in all directions and at a great enough distance the sum of all this expansion does actually exceed the speed of light.

[@callumhedley7117]

When the universe first “popped” into existence approximately 13.75 billion years ago, spacetime itself began expanding at speeds faster than the speed of light. This period, called inflation, is integral in explaining much more than the universe's size.

[@istvansipos9940]

"nothing can travel through space time faster than light. But space time does whatever the heck it wants" - Lawrence M. Krauss

[@Parkerlee1000]

It's scary to think that this little space rock we live on in this giant universe that it could be potentially infinite it just doesn't seem possible in my brain to comprehend it wow this stuff is amazing to listen amd learn about♾️

[@ioanbota9397]

Realy I like this video so much its so interestyng