What model of the universe do you think is correct? Big thanks to Ridge for sending me this wallet and supporting the channel! Here’s the site if you want to check them out! ridge.com/astrum/

@Lantern_Larry

Жыл бұрын

Klein Bottle. Cause it's cool no other reason.

@Kuro_Tsuki

Жыл бұрын

What about a combination of all three? We see space as flat; however, we've also observed that it has spherical properties, yet everything seems to be moving away from each other... This only seems plausible within an unobserved hyperbolic universe. Thanks for coming to my TedTalk. 😹❤

@anannoyingdog2647

Жыл бұрын

I'd like to side with you on this one, with your theory at the very end. All three at once. (Mostly just cause it sounds paradoxical, and paradoxes are fun.)

@geenadasilva9287

Жыл бұрын

honest answer? any opinion i have is based purely on speculation. i don't have the mental tools to have an informed opinion. wildly interesting tho

@davidbrydon4288

Жыл бұрын

“Flat” For me space isn’t a ‘thing’ it just is. Matter is all there actually is. Einstein hasn’t done us a favour talking about ‘bending’ space time in my humble opinion.

It's amazing how the more we know, we see how much more we don't know

@no_one_of_that_name_here

Жыл бұрын

And we're not even sure of that

@sgholt

Жыл бұрын

maybe multiple big bangs going off in a infinite space...

@TheStockwell

Жыл бұрын

I know! I mean, I *don't* know. 🤔

@szucsipiano7

Жыл бұрын

this is so hiperbolic, dude

@cyankirkpatrick5194

Жыл бұрын

Hopefully we are learning.

Nothing is better than an Astrum video right before I go to bed. Love this channel.❤️

@disco169

Жыл бұрын

Haha I do exactly the same thing!

@joshuadavis2273

Жыл бұрын

Very true statement 😂

@poisonouscarnage2289

Жыл бұрын

As I hoover the carpet

@crazydrummer181

Жыл бұрын

Other excellent channels I’d like to recommend that explore the same themes and provides the same asmr type of feeling, are John Michael Godier, SEA and Cool Worlds.

@MichaelL502

Жыл бұрын

I do the same thing every night lol

The visualisation of a hyperbolic space was godly - and I understand something now, I didn't before. Thanks.

@idehidde6304

Жыл бұрын

yea i agree, it is amzingly pretty descriptive so well

@veronica_._._._

Жыл бұрын

You used something beyond your comprehension to describe something beyond your comprehension.Thats hyperbole, and it's not how it is done.

@larrymunn5279

Жыл бұрын

@@veronica_._._._ Hehe I see what you did there. It can't be far off though it's computer generated images with correct parameters entered and I recall an astrophysicist on PBS using a geodesic as an example of what outward curvature space would look like. So you can call it an educated guess even from a cynical point of view.

@veronica_._._._

Жыл бұрын

@@larrymunn5279 It's our brains that are finite, space cannot be.

@veronica_._._._

Жыл бұрын

@@larrymunn5279 It's like a handy 10 second IQ test .

Your contribution to the education of us all puts me in mind of Carl Sagan. You instinctively understand the need for visual representation and explain complex concepts in such a remarkably transparent way. Much richer than "The universe is like a balloon and we're all on the surface of it," which is how it was taught to me.

@gabrielfkrk

Жыл бұрын

Yeah, I agree, I've never seen this second visualisation before

@thej3799

Жыл бұрын

I'm glad I was able to give my thoughts to everyone. The hardest part was the effort it took to get to where anyone would take me seriously. I've always seen things differently yet clearly. I'm a designer and so communication of complicated ideas in an intuitive way 🙃 well, I love all you. And am gracious people were willing to listen. I've offered a lot. And the goal was to educate people, to demonstrate that we are smarter than we believe. In fact we can reinforce good things innour minds. people are coming together under a common understanding that we are all part of everyone and everyone is part of everything. We, therefore have a responsibility with what we do, what we say. Hopefully everything I've done helps the world fight the controversy. We can find a way to compromise for a better future.

@PoeLemic

Жыл бұрын

@@thej3799 Did you produce this video? Or, did you help in its construction? Is that what you are referring to? I wasn't sure if I understood it correctly.

Hah! Never thought I would see the game that I worked on (Hyperbolica) as the artist here on this channel, what an honour! Cheers!

I'm amazed with what humans have achieved by just observing the cosmos from our earthly perspective.

@davidbonilla2253

Жыл бұрын

A great mathematics as well.

@Pactastic042

Жыл бұрын

We know so much that we actually know that we know very little when it comes to howw much there actually is to know and discover

@mrmagoo9249

Жыл бұрын

It’s also amazing how much we ignore, that could actually help our understanding progress far more

@bathin813

Жыл бұрын

Achieved what exactly?

@MattyT_86

Жыл бұрын

I;m amazed at what the universe has achieved by a very tiny small portion of it coming together to look back up at itself

My parents and I love space, and we also discuss and throw around ideas. One was that our universe is inside a single black hole, and that black hole we call a universe is inside another universe, so on and so forth.

@AlbertoGonzalez..

Жыл бұрын

Been saying that for 10 years 👍🏽

@thej3799

Жыл бұрын

Not inside. An event horizon of a 5th dimension black hole would have a 4 dimensional event horizon. Project this down to 3d and 4th is experienced linearly.

@d.dementedengineerc99isurf26

Жыл бұрын

@@thej3799 But it IS inside an event horizon... Distances currently at 8 billion lightyears away are literally impossible for us to reach...

@d.dementedengineerc99isurf26

Жыл бұрын

This universe is a black hole. Way too much symmetry with the spacetime diagram of a black hole compared to the big bang to simply ignore it...

@d.dementedengineerc99isurf26

Жыл бұрын

Did you know that scientists have calculated the diameter of a black hole with the mass of the known universe in it, and the diameter nearly matched our visible universe? Not a coincidence!

This subject frightens me more than any iceberg video, more than any horror film or jump cut. The ideas discussed here just leave me reeling. Thinking about it I get the same feeling I got, when as a kid it dawned on me that everyone, including me would die at some point, it's a feeling of loss of control, that everything you know doesn't mean a damn, it's just an awful feeling that's so hard to describe.

@chrisyoung7157

Жыл бұрын

Just do what I do and realize it's pretty much guess work. My guess is when telescopes get powerful enough, we'll spot another universe heading towards us and there is no end! Just like we see galaxies colliding with the help of our current telescopes.

@proteusblack8913

Жыл бұрын

Consider the musings of Alan Watts. Perhaps you (we) are not just what is in our bag of skin, but rather what the universe as a whole is simply doing at our point in space and time, that we are all an extension of this giant mass just as a blood cell is an extension of the whole human body. It switches your perspective.

@madelynhernandez7453

Жыл бұрын

@@chrisyoung7157 what you guess will mean end. Anything that collides is. Sorry to break it to you.

@madelynhernandez7453

Жыл бұрын

@@proteusblack8913 not really, I still feel terrible.

@chrisyoung7157

Жыл бұрын

@@madelynhernandez7453 There is far more space than objects to hit.

I think hyperbolic makes the most sense, especially when you consider the universe's fractal nature. Like you said, you open one door and two more appear.

@factormars4339

Жыл бұрын

Ok, and so, what is out of this?

@jamespostle6894

Жыл бұрын

@@factormars4339 nothing, as you go across the hyperbolic plane different types of energies and matter will be encountered some which we may not yet be aware of but for us at least and the way we can interpret the universe at this point in time space is infinite.

@factormars4339

Жыл бұрын

@@jamespostle6894 Nothing? You say this but you really don’t know. May be our universe is just a little part of the big picture.

@jamespostle6894

Жыл бұрын

@@factormars4339 maybe. Just my opinion. I think what's "outside" is currently beyond our comprehension. We don't even understand our observable universe yet.

@factormars4339

Жыл бұрын

@@jamespostle6894 exactly, and we will never fully understand the universe because WE are the universe, like a galaxie or a star, we are a little part of the matter of this beautiful thing.

Astrum is absolutely my favourite channel as of recently. Your content is amazing!

Imagine if we're just some particle in another universe

@Dankalank

Жыл бұрын

A mote of dust floating around the unkempt room of a brooding teenaged alien. Imagine if they turn the light on and we're faced with an eyeball of universal proportions, as aware of us as we would be to a dust particle in our own scale :o

@kiansaghafi8681

Жыл бұрын

yea i allways think about that, imadgine we find other life and they are fucking massive, we just turn into basic bacteria to them

@Ivan19271

Жыл бұрын

Unlikely.

@Rezcuz

Жыл бұрын

@@Ivan19271 "Imagine".

@rickgrimes9317

Жыл бұрын

@@Ivan19271 do you believe in gravity? Though

I love these videos. So much info and relaxing at the same time.

Human life is soo short...but even then we try to understand this huge/frigtening/fascinating universe!

I like the idea of the spherical universe where you would always come back to wherever you started. It’s such a mind fuck.

@feynstein1004

Жыл бұрын

That's just like the earth. What are you on about? 😂

Such a well explained video. This makes the concept of time and the expanding universe much easier to grasp.

@calinguga

Жыл бұрын

this video had a lot of things put in the wrong words, and if someone knows more than nothing about the subject it probable leaves them more confused than when they started.

What scares me when thinking of this is how there are different infinitys inside of infinity. So at someone point everything would lead to its own infinity state within the ever changing infinity. The universe is weird and scary to try to comprehend.

@deusexaethera

Жыл бұрын

It's not scary at all. Just because the idea doesn't fit inside your head doesn't mean it has sharp teeth and hungers for your flesh.

@onedova2298

Жыл бұрын

I do admit this thought is gnawing at my mind

@MechanicallyCrippled

Жыл бұрын

@@deusexaethera lol

@heyyo5487

Жыл бұрын

@@deusexaethera fear is relative. it does not have a set definition on what is and isn’t scary because everybody experiences it differently and to different things. the topic can make some people scared and some people joyous. everyone is different. nice try tho.

@LetsGo-LoveYourself

Жыл бұрын

@@deusexaethera sounds like you're describing a cat. But Im not pointing out my basic fears, I'm pointing to my fear of an existential crisis trying to explain everything. Maybe one day you'll be intelligent enough to understand higher concepts.

Awesome that you used Hyperbolica for demo

Great video, Alex! I’ve always liked the idea of a hyperbolic universe. 🎉

I love your channel Astrum. Thanks for exploring these ideas.

Actually it is possible to have a convex topology where lines can't be parallel but also don't intersect: A toroid, aka a donut. Lines attempting to be parallel along the surface of a toroidal topology will move closer together and then further away again, but will not intersect as long as they were truly parallel at their starting location.

@SlyNine

Жыл бұрын

Tho along some curves they could be parallel

@deusexaethera

Жыл бұрын

@@SlyNine : Not if the lines are straight. (and straight lines are the only kind of true lines in mathematics.) Consider lines of latitude on a globe. They run parallel to each other, but they can only do so because they're continuously curving. You can't walk in a straight line and follow a line of latitude, except exactly at the equator. If you look at lines of longitude you can see what happens to truly straight lines running along a curved surface.

@bobbrereton4785

Жыл бұрын

@@deusexaethera Baloney. Algebra produces curved lines all the time as does basic geometry. You are wrong.

#1 Space KZread channel. Very interesting subjects and so good explained.

@Datoda

Жыл бұрын

Don't forget about the insane quality graphics

Since so-called parallel universes interest me the most, I go for finite. Our universe could still be one of these shapes that even change over time. The forces involved in parallel universes could easily influence not only the shape but significant characteristics especially if they touch ours at version points in time.

@whiteape2714

Жыл бұрын

Parallel or multi universes its just story tale for those who like star wars and star trek 🐒

@nathanielmathews2617

Жыл бұрын

Look up supertasks. You can have a infinite space within a confined area.

@nathanielmathews2617

Жыл бұрын

@@whiteape2714 You say they are a "fairy tale", but there is evidence that back them up as absolute possibilities. You could even argue that an infinite universe, depending on how inflation occurs and the quantum fields separate, itself is able to be considered a multiverse. There are many theories that have more assumptions than others, but there are many that are backed up while having fewest assumptions.

The proverbial "educational video" that asks a lot of questions, but leaves you with that, "Ok, but I'm not really sure I actually learned anything" feeling

@eryxyre

Жыл бұрын

Yeah, videos are popular but not really that great to show science. There are video games in non-Euclidean geometries (HyperRogue is free with various 2D and 3D geometries), and books of course. Also there are other videos too (the CodeParade video they took some scenes from is good, or the ExtraCredits video about non-Euclidean geometry, but this is more about history).

@father3dollarbill

Жыл бұрын

True but also, these videos are redundant. There's no new info about the universe's size, etc. No new discoveries about it. We're all just guessing. There's really no way to know.

I like a mix of all of them. Like a stretchy trash bag being filled planets and all kinds of matter. The lining of the trash bag itself is the gravity and those converging lines you talked about. Which is why when you have more stuff ( mass) at one spot you have a tighter bag (gravity) at that spot.

@whiteape2714

Жыл бұрын

I like trash bag concept very scientific 🐒

Great video astrum, well done as always!

You material in your videos are amazing, I love how you make your own models and how you make things easy to understand, thank you 😊

I get that the universe can't be endlessly expanding in all directions from all points of view, but that doesn't rule out the possibility that the universe does have a centre Somewhere, and everything expands ever outward from that one point, we just don't know where it is... am I wrong? Anyway thank you Alex once again for explaining everything so beautifully even my unscientific brain can understand it, your work is wonderful, I hope you never stop.

@_Zdex007

Жыл бұрын

Basically where the Big Bang happened.

@thomashenderson3901

Жыл бұрын

The big bang happened everywhere. Where you are, where I am, and at a place further than we have ever seen.

@davidkopp4291

Жыл бұрын

But it can be expanding from all points of view and that is what it appears to be doing. Think about putting some dots on the surface of a balloon and then inflating the balloon. Every dot will move away from every other dot. The center is not on the surface of the balloon. So applying that to our universe, space is the surface and the center would be in some extra dimensional space that we can't access.

@thomashenderson3901

Жыл бұрын

@@davidkopp4291 The thing I defy anyone to get their heads around is that the universe was infinite, but prior to the Big bang, point like in it's infinity. Infinite and infinitely dense feels like a more satisfactory sounding description, but that also has some major flaws.

@Turunflo

Жыл бұрын

The original mid point would expand because of inflaton. So everywhere would be that center. We could still be a singularity mid point, but all of its space expanded, so from "inside" it could look bigger and bigger. Like Dr Who's machine. An inner space bigger than the actual point this universe might be.

You just totally made my brain explode!! I am studying the particles leaving my skull, trying to decide if the explosion is flat, spherical, or hyperbolic!!!

your thumbnail is how i imagine it looks from the other side of each 'black' hole, (inside out universe kinda) with not necessarily white surroundings, but immensely bright surroundings and unimaginable energy, and maybe surrounded by other 'black' holes corresponding to each ones perspective of/in the universe. just thought i'd share, just a fun thought

There is another even more exotic possibility! The curvature of space need not be uniformly curved in all localities. Certain localities can be convergent, while others are divergent.

Great great GREAT video!!! Wonderful theories, and “theoretical combination of theories “!!! The thought of hyperbolic space answering the dark energy/dark matter conundrum is fascinating!! Keep up the great work!!!

Your videos is absolutely awesome, you explain very good and the scenery and animations are beautiful. This topic is one of my top intrest. I like the idea of the hyperbolic shape, is make the most sense to me. Cause of that everything is getting curved by gravity.

Astrium, thank you for your content. I have been learning a lot and keeping myself informed about space with your channel. Love the thumbnail as well! Infinity plus infinity! 😂

One of the more easily understood presentations of the warping and shapes of spacetime.

Such an interesting question, because all the possibilities seem ridiculous. An edge? Crazy. Infinite? Crazy. Curved? Crazy. A simulation? Crazy.

Be wild if all the distant galaxies we see are the same few hundred or so with their light simply doing laps around the universe and showing us their state during a portion of each light-lap.

@lantaguy7

Жыл бұрын

That hurts my brain😵‍💫

@JROD082384

Жыл бұрын

We have already disproven this idea a very long time ago. There has NEVER once been a duplicate image of any star, planet, or galaxy in any of our observations, nor have we ever imaged things behind us when observing space ahead of us.

@spongebobsucks12

Жыл бұрын

I've always thought about that, it'd be so fucking wild but I think space is just too big. Like no way to comprehend type big.

@charlesbrightman4237

Жыл бұрын

Questions: a. Do spiral shaped galaxies eventually collapse in upon themselves? b. Do all galaxies eventually collapse in upon themselves?

@ThorsDecree

Жыл бұрын

@@charlesbrightman4237 a)no b) no Galaxy mergers happen between multiple galaxies, but we've never seen a "collapsed" galaxy. If anything, galaxies shed mass by occasionally ejecting stars. Eventually, galaxies will in theory disperse due to the Big Rip. Were space contracting rather than expanding, perhaps they would collapse.

The rings around a black hole remind me of the way rainbows are visible but not there…

Started watching Astrum because of cool facts of Pluto, then this... You really dragged me into a black hole of knowledge

This really makes me think and I haven’t gone through the starting ads yet

The concept of "far more endless, far more infinite" intrigues and terrifies me.

This is fascinating!❤

Excellent visual for hypoballic space. I've always struggled to visualize it.

For me, this has been a remarkable film!! I can't say enough great things about it!! Thank you!!

Great video and fantastic narration. Thanks for this video.

Whenever I was thinking of the universe and where it ends or what is it there, after this universe, I've always imagined it as a blank space. But then I was wondering where does this blank space end and if it's infinite how is it possible for space to be infinite? How does infinite look like? How can something go in forever? We humans know that whenever there's a beginning there must be an end. I will never comprehend it.

@tlpa

Жыл бұрын

It reminds me when i was told infinity doesnt exist and everything has an end. I thought what about the universe? If theres nothing outside the universe, Then whats outside that nothing? And whats outside the outside?

@nathanielmathews2617

Жыл бұрын

I understand the blank space perspective. But unless there is "space" outside of a confined universe, you have to try and imagine the concept of nothing. It isn't impossible to conceive of, but it is a bit tricky. For me, I perceive it by trying to avoid noticing my mind's eye or perspective on the concept. Infinite spaces can be in confined areas, this is called a supertask. There can be a multiverse where many of these exist in a extraversal space that may or may not have rules, dimensions, etc... But my personal view? There are other universes, they are not able to be traversed across as they do not intersect. Assuming literally nothing exists out of them, you could argue that they are either separate or living parallel, effectively in the same place. Like if we were stuck on a 2d surface but attempt to move 3 dimensionally, translated to the universe including it's laws and all forms of influence.

@ashleyhill6697

Жыл бұрын

Humans cant even comprehend a beginning or end. If there was a beginning to our universe what came before it and if theres an end whats after? If the universe didnt have a beginning how did we reach this point when its already existed for an eternity? Our brains just arent developed enough to comprehend paradoxes like these so we fill the gaps with sci fi like spacetime or religion.

@tlpa

Жыл бұрын

Say; When the universe was born, The laws of physics and time most likely were made when the universe was made, The before and after most likely have foreign laws/no laws and we cant comprehend that because we are bound/accustomed to the laws present in our current universe.

@richardleetbluesharmonicac7192

Жыл бұрын

Since there is no time in space, there was never a beginning or end. The human brain is a finite organism that cannot comprehend infinity. When you look at Max Planck and inject consciousness into science, it all starts to make sense.

Hyperbolic is my vote. Perhaps something conical in shape or similar. I like to think this structure is finite and has a bottom edge all matter is racing toward. This edge slows and changes the course of all that cross it and send it hurtling back to a singularity.

Love the present - what shape makes you happier? I love the dodecahedron !

I bet that if you had some sort of impossible ship which could physically travel at infinite speed, that when you reached the edge of the expanding universe, you would just never be able to reach it, it would just always be in front of you, but just barely out of reach.

Cheers for the video mate 😎 👌

Thanks. You've given me some ideas for the climax of my sci-fi novel!

I'm getting extremely addicted to this kind of videos, and it's a fascinating subject to learn about it, definitely learning a lot everytime i watch this channel. Simply amazing!!!!! ❤️❤️❤️❤️❤️❤️😍😍😍😍😍😍

When I was a child I used to play with marbles and imagined that each one had a universe inside it. 😊

@Diponty

Жыл бұрын

I used to swallow them and made bets with my buddies which color I would pass out first.

@mattclayton8474

Жыл бұрын

@@Diponty Taking bets?

As my guide told me on the trip through space, "This never ends. " Fair winds and following seas to all.

@StretchOnYT

Жыл бұрын

Semper Fidelis

@GySgt_USMC_Ret.

Жыл бұрын

@@StretchOnYT Semper Fidelis, Jarhead!

@ekothesilent9456

Жыл бұрын

Fair winds and following seas!

@father3dollarbill

Жыл бұрын

Not ending is also a bad thing.

@GySgt_USMC_Ret.

Жыл бұрын

@@ekothesilent9456 Aye!

Excellent video, that´s an open mind to new windows to keep searching and developing a new kind of math to resolve it.

Your vids are the BEST bedtime stories!!!♥♥♥ I'd totally listen to yours and Kurzgesagt's lovechild's voice forever!

Dude these videos are fun to listen to stoned and its just cool. Ill be honest i think all 3 universe models are accurate. There is to much to the universe for us to be able to say anything conclusive about it.

@jonsnow2689

Жыл бұрын

Have a drink like a man

@charlespancamo9771

Жыл бұрын

@@jonsnow2689 why not both pv$$y?

@andyman8630

Жыл бұрын

the first law of thermodynamcs (aka the law of conservation of energy) says *everything* that needs to be said about the Universe - it wasn't created, it will not end and it has no boundaries, at any level, in any way

@australien6611

Жыл бұрын

@@jonsnow2689 ah yes stumble around and argue and fight with people "like a man" You need to redefine what a man is dude

@australien6611

Жыл бұрын

Agreed! This dude has got the most relaxing voice around

Wouldn't our universe itself have mass? What would be outside of it? Our universe could be a mass being entered into another hyperbolic timeline and causing the same effect as what you explained.

@thej3799

Жыл бұрын

Draw a circle around what you know. Now draw a circle around that... So long as we are here we by the nature of ourselves in the context of the fundamental nature of the universe we will always be and can only understand "inside". Conceptually infinite. Bound between ideas of converging and diverging infinities.

@darlenesmith5690

Жыл бұрын

@@thej3799 Or, one can imagine that the universe expands at a finite speed (even though this speed might be accelerating, it is still finite). One can also imagine that it has only been doing this since the Big Bang, so a finite amount of time. Finite speed * finite time = finite size. There is no infinite in nature, only finite. Infinity is a mathematical concept, not one in reality.

Awesome video, one of the best I've seen on this matter, and yet after watching it 3 times I barely grasp 50% of what's explained in it.

This channel is getting more and more interesting!😍

Ive frequently thought we may have traveled (in the past) through a black hole, that they are recyclers of nature, and what we see is a view of (infinite times?) this. Ive also pondered if our idea of red-shift could be caused by gravitational lensing from our own galaxy expanding, making it only seem that things are heading away from us, which in fact the opposite may be true (or they are going nowhere, or collapsing even). What your sharing, makes it seem so much more plausible that we may indeed have been sucked through some kind of black hole, and came out a singlarity, and this may also help shed light on what a singularity is. Maybe all we need to do is look up to see what a singularity looks like from its ejection point. Maybe a singllarity is just what we are all in, seeing things from the mirrored side of the end effect of being on the otherside, e.g. singularity being what we are experiencing now.

@father3dollarbill

Жыл бұрын

We can't travel anywhere using black holes

What if the universe was born from another universe going supernova, and we are the start of a universe born from the remnants of another?

@mathdantastav2496

Жыл бұрын

thats kinda the big crunch theory, wich assumes a spherical universe

@Pyxis10

Жыл бұрын

Universes don't go supernova. Thats just a term for a specific type of exploding star.

I've just watched one of the most incredible videos of my entire life. It just blow my mind.

Fascinating and very well explained. Thank you. P.S. I like the look of that wallet too. I’ll check it out.

Another (big) banger as always, Astrum

The world is actually held up by 4 elephants The elephants are standing on a very large turtle The turtle is standing on another very large turtle. From there it’s turtles all the way down. This proving space time is actually curved as the turtles are actually standing on themselves. I don’t know why it took me so long to come to this conclusion. Great video. Thanks for clearing that up in my mind 🤠

@Ralordris

Жыл бұрын

10 points for the Terry Pratchett reference lol.

Mass off setting the hyperbolic curvature of space... That is indeed an interesting way of looking at it. Maybe you're onto something there, afterall matter and gravity do seem at least to be properties inalienable to each other and seemingly only the way they are due to the simple presence of space to begin with.

What's so interesting - and difficult - about determining the shape of the universe, is that we can only rely on _light_ to _see_ what's out there. Light, however, can only follow along the lines of space. We cannot _see_ space, but space _can_ be warped as evidenced by black holes. I'm truly curious if there's something out there that will allow us to observe beyond what we can see, smell, touch, hear and taste. This is what makes science so fun for me, and why I love physics in general. Thanks for this brainteaser!

@N.i.c.k.H

Жыл бұрын

If you look around youtube there are some good videos showing how anything interesting that propagates faster than light necessarily breaks causality so I wouldn't hold out much hope for that.

My favorite explanation of hyperbolic spaces comes from a devlog by CodeParade for his game hyperbolica, would recommend checking it out if you are still having trouble understanding hyperbolic space. I just watched a bit later into the video and saw that you used footage from that game lmao

i agree with your final point that the 3 theories are likely working in tandem. the fact that we can postulate the theory of hyperbolic space based on the evidence in front of us shows it’s a possibility that we just can’t prove yet. and we’ve learnt over time that our perception isn’t perfect, it’s at the mercy of the reality we find ourselves in. like the visualization from one of your older videos about a man in a solid walled box flying through the vacuum of space not being able to really tell with certainty that they’re moving at all. we may just be inside the box with no way to break through the wall yet, being limited to what we can see from our limited point of view. it’s all a bit overwhelming to think about when you’re just a hobbyist like me hah hopefully i don’t just sound like an idiot pretending to be smart hahahah

@aguyishappy3988

Жыл бұрын

Being self aware enough to know you could sound arrogant instantly shows you're not arrogant or tryign to sound smarter than you are :)

@GameTimeWhy

Жыл бұрын

If we are inside a box kind of thing, I wonder if a super large hadron collider could break or rip through it? That would be cool.

@cefarix

Жыл бұрын

Two important points: 1. There is a difference between the shape of spacetime and the shape of space. 2. Our best measurements show that space is either flat or extremely close to it. Unfortunately this video neglected to mention these very important facts.

Yes, thanks ridgewallet for sponsoring this video. We really appreciate it. Should just upload the ad next time. Don't even need the video

You have such great videos!!! I vote for hyperbolic or possibly curved.

@rickgrimes9317

Жыл бұрын

We need a universal reset.....I need to go to Florida for that to happen

I like the hyperbolic theory. It explains away dark energy, which feels like lazy astronomy to me. It's like when archaeologists can't explain something so they wave their hands around and say "It must be ritualistic".

@CountScarlioni

Жыл бұрын

But you would still need to explain with the theory why it only actually started to be hyperbolic 5 billion years ago? Surely if the cosmos were naturally hyperbolic that expansion would have been there from the beginning?

@doggonemess1

Жыл бұрын

@@CountScarlioni Maybe it's always been hyperbolic, but the hyperbolic shape only became apparent once the universe grew large enough? On some scales, it's impossible to see the shape of something until you're far enough away. I'm not an astrophysicist - I'm probably wrong about all of this. It just feels logical.

The more I think about it, imagining anything other than infinity gets harder and harder.

@alphagt62

Жыл бұрын

If the universe is expanding, how could it be infinite? If the universe is bigger today than it was yesterday, it is not infinite. They say at the moment of the Big Bang, the universe was infinitely small, so which day did it change from infinitely small to infinitely big? Remember galaxies aren’t flying away from us, the space between us is expanding. Is there anything outside of our universe we are expanding into? I doubt we will ever know.

@Sanquinity

Жыл бұрын

@@alphagt62 the first one doesn't make sense. The universe is still infinite, just a bigger infinity. Just like how you can fit an infinite amount of decimal numbers in between 0 and 1, but there are also an infinite amount of whole numbers. The latter is a larger infinity than the former. But both are still infinities. Infinities are weird concepts like that...

brilliant thank you 🙏🏽

I''l go in the direction of the sphere, but go a step further and call it torus like. The the center or spindle is so constricted that you can't see it so it offers the appearance of a sphere. The other idea is similar except the center of the sphere or torus is synonymous with its out side surface (3D) in 4D this would mean if you reached the 3D outer surface (event horizon) then you would emerge from the center.

i just have a question: if you can look back to within 300M years of the big bang in one direction, if you look 180 degrees in the other direction how far back should you be able to see?

@ladysquirrel9277

Жыл бұрын

The same

@ozymandiasultor9480

Жыл бұрын

the same, big bang happened everywhere. It is not like it happened in some space and we can look at it from far away. It happened everywhere, so no matter where you look, you will see the same.

@syx3s

Жыл бұрын

@@ozymandiasultor9480 aahh, so we're the center of the universe then eh?

@synchc

Жыл бұрын

@@syx3s Everywhere is the centre of the universe because the Big Bang didn't happen here or there, it happened everywhere. It's difficult to wrap our heads around but it appears to be the case.

@ZBB0001

Жыл бұрын

@@syx3s YES! If the Universe did start from a single point, then any point you choose now - wherever it is in the Universe now - was that point in the beginning. So when people ask me where is the center of the Universe I can say, "I am the center of the Universe!" and not be wrong....

If the universe is infinite, then how could there be a Big Bang? To me, it seems the theory of the Big Bang is impossible.

@andregustavo2086

Жыл бұрын

From a perspective in which the universe is infinite, you can't imagine the singularity as a point only, you'd need rather to imagine the evolution of the Big Bang from the singularity until the present moment as a change of density of the universe, and therefore of entropy.

@thej3799

Жыл бұрын

When you first saw an object. Like say you observe a new car. Now, the car essentially was non existing in your world. Now it is. Pretend you're part of the car. What would it be like for that part to suddenly "be" Now in the world- your mental construct- the universe as you know it..? 🌻

@N.i.c.k.H

Жыл бұрын

A closed universe isn't infinite. But it is still effectively infinite if it expands faster than the speed of light, which is what we deduce from the red shift of galaxies. i.e. the universe can have a finite volume at any given moment and yet not even light could ever get back to its starting point.

Thanks again for your attention to detail.

I've been wondering if the acceleration of the galaxies away from each other is because we're all being drawn towards the drain... like bubbles in a tub. Those closer to the hole move faster and are compressed by the mass of the hole. When you're in one of those compressed galaxies, it doesn't look like all of the starts and molecules are smaller, but everything else seems to be accelerating away in every direction.

@abhinqv3490

Жыл бұрын

maybe its just big af gravitational clusters

@ekothesilent9456

Жыл бұрын

If this is the bathtub I don’t wanna see what’s in the sewer system fam

Is it possible to build technology fast enough to counteract the infinite expansion of the universe in order to discover the entire universe? Seems like self correcting code

@Sanquinity

Жыл бұрын

If we wanted to "counteract" the expansion we'd have to invent a way to travel many times faster then light. And star trek like warp wouldn't cut it. I'm talking millions of times the speed of light here. As even without the expansion it would otherwise take way too long for even multiple generations to explore the entire universe. In fact, by the time we might have invented such a method we'd likely have to be able to travel at over a billion times the speed of light to explore the entire universe within any kind of decent time frame. I'd say it would already be a good enough accomplishment if we managed to explore our entire galaxy though. Because even for just our galaxy star trek warp wouldn't be enough. At over 1000 times the speed of light it would still take you more than the current average human lifetime to just get from one end to the other in a straight line, let alone explore the entire disk and all it's hundreds of billions of stars. (Yes, billions. Not millions)

Absolutely great episode, easy to understand. I hit the 'like' 3 times!

Hi Great video! Could the expansion of the universe be different in different areas like the voids between galaxies as apprised to inside galaxies?

For every overview you pursue Each and every other Fall beneath the cover of mystery

I think all of these pieces interact in some way and are possibly the keys to a much larger puzzle

@CountScarlioni

Жыл бұрын

If all three interact in some sort of popadom space geometry, then wouldn't there be significant (and disturbing) variations in CMB anisotropies? I'm imagining it'd look like some patches of the CMBR would appear a very different age to others.

As always, very nice work!!

I always thought space was like standing inside 2 hyperbolic mirrors attached to each other so I'm happy to see that visualization makes sense.

One of my favorite channels to fall asleep to. Then I have to rewatch the video the next day....🥰

I don’t know much about physics so i have no clue whether this would work but i like the concept of the universe existing on the surface of an expanding hypersphere

Wow we are blessed with both a SEA and Astrum video in one day.

Thank you, that was well explained.🙌🏻

Finally we talk more about fractality of the universe. I do believe this theory is very close to reality

Fun video to watch after just finishing War of the Worlds season 3, which covers some of these topics.

Basically. We don’t know… but it’s fascinating seeing the theories come out & then experiments and science evolve to prove/disprove these theories as we go.

"To infinity and beyond!" It is now, many years later, that I finally come to realize the powerful immensity of Buzz Lightyear's words. 😂

@Astrum Did you get a new microphone? So much clarity!

Perhaps I have misunderstood, but when describing the accretion disk surrounding the black hole, the narrator said that we were "seeing both the >top and bottom Surely, what he meant was that we were seeing both the >nearside and the far-side The light from the accretion disk is bent in just the same way that the sun bends light from transiting stars, but far more acutely.... If the light was being bent so drastically that we were able to see both the top and the bottom of the ring simultaneously, would we not then see the >SAME i.e. instead of the rotation appearing to smoothly follow a single direction (as demonstrated in the video... (First to the right and then to the left, making a flawless transition))... What we should see is BOTH upper and lower images travelling in the >SAME Thoughts? Cheers!

Keep up the good work Astrum 👍

I'll see if the elders left any clues haha I have a feeling fractal space and wormholes make sense together. It's like the twisting space has bubbles that pop and release space pressure.

Mind boggling. Love these thought experiments. 😎