Was the Big Bang a WHITE hole?

[@C.Y.123]

Hello Dr. Becky. I just found your Channel about 2 months ago and have been binging it nonstop. You're awesome and a great role model for my daughters who also watch it. Thank you!

[@DrBecky]

Thanks for watching and being here 👍

[@flatearthjackal9201]

@@DrBecky hey Becky can you provide a scientific experiment proving large bodies of water can curve?

[@Valdagast]

@@flatearthjackal9201 Put it in a centrifuge and spin it really fast. The water will stick to the sides. If the sides are curved then the surface will curve.

[@DrDeuteron]

@@Valdagast that's a good one. I was gonna say: go to the beach. The Exploratorium has a skinny fish tank that spun, and the water was stable in a perfect parabola.

[@DrDeuteron]

@@flatearthjackal9201 You know we have satellites the measure the surface of the ocean. It's very curved, with 300 meter dips and bumps because the gravity field of Earth is not uniform. Look up and read about "The Geoid", and EGM96 and EGM2008. When you understand why over a point of strong gravity (say denser crust or magma), the sea level go UP (not down, and over weaker gravity, the sea level drops)....then you'll understand it.

[@christophermarotta8494]

Hi Dr. Becky, I am an Earth Science Middle School Teacher in New York. I also teach Science Research Two to our highly motivated Science Students. I just wanted to tell you how much we have been enjoying your Astronomy News and Updates. My students look forward to them as their interest and knowledge grows. Thank you for inspiring my students! Cheers, Chris

[@NiceGameInc]

The good part about science in humans is that once there is no way to prove something scientifically you still got philosophy and you might say "matter does only matter to humans" and "where there is a beginning there must be an end to it" and the other way around i.e. "if there is no beginning in the first place, there doesn't need to be an end to it". But just like everything we know of tends to become the shape of a ball or circle, it is us running around in circles when trying to get a glimpse of something that lies way beyond - impossible to be witnessed or measured. And just like there is a "circle of life" no one can escape, there might just be a "circle of space and time" in which all matter is captured in a never ending process of expansion and accretion and vice-versa. From the perspective of a philosopher, this could be a simple approach to find sense in life and the universe as a whole.

[@nicolascrevecoeur8486]

Please never stop talking to us about your work and passion.

[@sterlingphoenix]

Sure, when she does it it's OK. When I do it, you go "sir, other people are trying to use the drive-thru".

[@ezza8833]

The Earth is flat and Motionless…… fact ….✅

[@clocktower1164]

And never stop scratching !

[@BravoTwoDelta]

@@ezza8833 and proof to back that claim up?

[@MorpheusOne]

@ezza: So, do you actually support white supremacy or are you merely doing nothing more than trolling for your `shits & giggles`?¿

[@williamderkatzen8987]

“Shh!" said Ford. "It's conical. So what you do is, you see, you fill it with fine white sand, alright? Or sugar. Fine white sand, and/or sugar. Anything. Doesn't matter. Sugar's fine. And when it's full, you pull the plug out... are you listening?" "I'm listening." "You pull the plug out, and it all just twirls away, twirls away you see, out of the plughole. "Clever." "That's not the clever bit. This is the clever bit, I remember now that this is the clever bit. The clever bit is that you then thread the film in the projector... backwards!" "Backwards?" "Yes. Threading it backwards is definitely the clever bit. So then, you just sit and watch it, and everything just appears to spiral upwards out of the plughole and fill the bath. See?" "And that's how the Universe began is it?" said Arthur. "No," said Ford, "but it's a marvelous way to relax. Douglas Adams Also… have you seen dr. Who: World Enough and Time and The Doctor Falls?

[@innocentbystander3317]

Ford is right, and on multiple levels.

[@MaryAnnNytowl]

Yes, I did see them, and I love them, even though I hated saying goodbye to the one that I think was my favorite Doctor, ever. The concept of the miles long ship, one end so much closer to the event horizon than the other end is, is a really fascinating one! It also reminded me of what I think was one of #10's first double episodes, the Impossible Planet and the Satan Pit, which also dealt with a black hole!

[@williamderkatzen8987]

@@MaryAnnNytowl ah yes, the Bitter Pill

[@reubenmanzo2054]

@@MaryAnnNytowl #10's first double episode was Rise of the Cybermen/The Age of Steel. But otherwise, yes. However, there is one aspect about the mile long ship concept that had me confused. Since the ends of the ship are at different distances from the black hole, the gravitational effects would be different throughout the ship, as shown with the time differences. So how come the ship wasn't being torn apart?

[@MaryAnnNytowl]

@@reubenmanzo2054 you are correct. I was thinking that pair was right after the Impossible Planet & Satan Pit, not right before it. Ah well, I was running on hardly any sleep, so I'm using that as an excuse, LOL! As for the mile-long ship, I figured that they weren't close enough to the event horizon to be spaghettified, or even torn apart, just close enough to be affected by the time dilation. If that makes sense.

[@morlath4767]

I've just come across your channel and love it! I've been slowly binging your older videos, and wanted to throw out that we should never forget the influence fiction can have on young minds. Red Dwarf did an entire episode devoted to white holes, and that was the "big bang" for my love of astrophysics. So, thank you very much for this video!

[@egyeneskifli7808]

"Do all black holes contain other universes entirely?" A simple question about this: do we even have a definition of a universe? And another thing from SG-1 (Season 1 Episode 17: Enigma): "Samantha: -We call it quantum physics. You know the theory? Narim: -Yeah, I've studied it... in among other misconceptions of elementary science." The best thing in a good sci-fi is the open mindedness. And maybe that quote is right. Maybe we can't tell what happened before that moment in the big bang, because we are in the wrong track completely.

[@CajunWolffe]

Yeah, I'm of the mind we're on the wrong track too, but I'm not basing it on StarGate.I believe the universe is part of life itself, and there are many more like galaxies in our own. Why couldn't a black hole to a white hole be a connection between two universes? As one universe grows to create black holes of its own life perpetuates. Nobody has the faintest idea of what really happened; they're just models of what we think might have occurred based on old science and religion. We're still a primitive species, toolmakers at best.

[@ottomais]

Robert B. Laughlin, Nobel Laureate in Physics, endowed chair in physics, Stanford University, had this to say about ether in contemporary theoretical physics: It is ironic that Einstein's most creative work, the general theory of relativity, should boil down to conceptualizing space as a medium when his original premise [in special relativity] was that no such medium existed [..] The word 'ether' has extremely negative connotations in theoretical physics because of its past association with opposition to relativity. This is unfortunate because, stripped of these connotations, it rather nicely captures the way most physicists actually think about the vacuum. . . . Relativity actually says nothing about the existence or nonexistence of matter pervading the universe, only that any such matter must have relativistic symmetry. [..] It turns out that such matter exists. About the time relativity was becoming accepted, studies of radioactivity began showing that the empty vacuum of space had spectroscopic structure similar to that of ordinary quantum solids and fluids. Subsequent studies with large particle accelerators have now led us to understand that space is more like a piece of window glass than ideal Newtonian emptiness. It is filled with 'stuff' that is normally transparent but can be made visible by hitting it sufficiently hard to knock out a part. The modern concept of the vacuum of space, confirmed every day by experiment, is a relativistic ether. But we do not call it this because it is taboo.[6]

[@davidadams2395]

@@ottomais Thank you. You've piqued my interest about space as an ether.

[@MrPig40]

I love when I stumble across another person who wants to share their passion for space with me. Knowledge is one of my favorite gifts to receive, thank you! Subbed

[@Marcbr73]

Great vid👍 I’m a carpenter and have always had a huge fascination with the stars, I’m almost 49 and have seen the changes of the view of our galaxy and universe and it’s been an absolute adventure to where I’m now at the point of the more I learn the less I know🙈😊

[@SomethingImpromptu]

I’ve been thinking about this concept for years & this is the first time I’ve seen a science communicator actually bring it up! Props. I’m torn between this kind of loop universe (with the time dimension basically forming a loop that turns spacetime into a 4D torus with black holes on one side of a singularity & the Big Bang on the other side) and the fecund universe model.

[@hippykiller2775]

That's an extremely interesting ide

[@TriMarkC]

As have I! In fact, in Jr.High (Middle School) I wrote a Sci-Fi story with a black-hole -> white-hole as the environmental background that my characters had to deal with.

[@digloria77]

Same thing! When a white hole was explained to me for the first time as a kid. The big bang was the first thing that came to my mind. I also thought maybe our universe was inside of a black hole!

[@dreamr4c3r]

An infinite wavelength = infinite spin = infinite gravity = black hole… When you reverse this, you get a wavelength approaching zero = approaching zero spin = infinite anti-gravity = the big bang Everything from 0 to infinity is a different kind of wave.. from a light wave, to a sound wave, to the time wave… However, the time wave can never loop - it has a wavelength that approaches 0 - which means that if it were to attempt to return back to the starting point, it would infinitely expand at an accelerating rate so that it could not achieve this… aka, the universe.

[@wstavis3135]

Point of order; Dr Becky is an actual SCIENTIST (astrophysicist), not a "science communicator". Bill Nye is a science communicator (a poor one).

[@Shapeshifting-Monkey]

The Cat : So, what is it? Kryten : I've never seen one before - no one has - but I'm guessing it's a white hole. Rimmer : A *white* hole? Kryten : Every action has an equal and opposite reaction. A black hole sucks time and matter out of the Universe; a white hole returns it. Lister : So, that thing's spewing time... Lister : [donning his fur-lined hat] ... back into the Universe? Kryten : Precisely. That's why we're experiencing these curious time phenomena on board. The Cat : So, what is it? Kryten : I've never seen one before - no one has - but I'm guessing it's a white hole. Rimmer : A *white* hole? Kryten : Every action has an equal and opposite reaction. A black hole sucks time and matter out of the Universe; a white hole returns it. Lister : [minus the hat] So, that thing's spewing time... Lister : [donning his fur-lined hat, again] ... back into the Universe? Kryten : Precisely. That's why we're experiencing these curious time phenomena on board. Lister : What time phenomena? Kryten : Like just then, when time repeated itself. The Cat : So, what is it? [Kryten, Rimmer, and Lister stare at Cat] The Cat : Only joking.

[@hibbytam]

So what is it?

[@ShamrockParticle]

I knew someone would go there!! ❤

[@LongtownLee]

Smeghead

[@reasonerenlightened2456]

insane amount of energy required to start the BIG BANG can not just spontaneously spring into existence. There must be some build up of that energy as a result of a process.

[@andyhepburn6855]

So it's decided then, we consult Holly

[@andrewpaul8732]

As someone who just discovered your content I really like the plugs for your other videos. Their on topic, the tangent isn't intrusive or shilly. I was going to look at your videos ranked most popular anyway but this is great too :)

[@armyofshea7941]

Just received your book in the mail yesterday, and got one for a friend at work. We both enjoy nerding out in things we don’t understand. You are slowly, but steadily, helping us grasp the content. Thank you! She laughed when I told her I could listen to you describe paint drying.

[@dvabrannon]

Dr Becky should fo a video on paint drying, and how it parallels the formation of the cosmos!!!

[@CrimsonAkato]

next April fools I need a paint drying video.. !!!

[@GameTimeWhy]

@@LifeandMore7033 tell me you don't know what science is without telling me you don't know what science is.

[@merezko4339]

Since you mentioned Stargate, the premise of the third series “Stargate Universe” is that the gate builders, saw a pattern in the cosmic background, indicating some kind of order at a specific position in the early universe. And are using the Gates to leapfrog through galaxies to observe that position at different distances, and to hopefully make it there. It takes literally a billion years to do this and we humans have stumbled upon the project about 800 million years into its journey, by accident :)

[@tobyclayton2597]

A sadly underrated series that lost out to Battlestar Galactica.

[@damouze]

@@tobyclayton2597 Both were good series that I enjoyed greatly.

[@chaostourist2951]

@@tobyclayton2597 I always thought it faded due to be so different from the other stargate shows. it seemed more serious drama than the more campy adventure of the previous 2 series.

[@balibee91]

@@chaostourist2951 syfy wanted a replacement for BSG after the show ended, so they turned down the campiness of stargate and that's how we got SG:U. it just wasn't a good fit.

[@themightypen1530]

SG:U was my favorite one of the series. They did a great job with casting, writing, just everything was great. I was so sad that it didn't last.

[@MelindaGreen]

What if space itself is a physical superfluid? With black holes, it's the gravitation of matter that is sucking the stuff in faster than light can propagate out. With a white hole, space may be bursting out under it's own pressure, dragging matter along with it.

[@TheAbstruseOne]

This is one of my favorite (as a non-scientist) hypotheses about where the universe came from - that a black hole beyond the event horizon is "punching through" our universe and creating a white hole that forms its own universe. So not only are we inside the event horizon of a black hole, but every black hole in our universe is creating its own universe.

[@artemkras]

Except for the fact black holes aren't holes, but points

[@TheAbstruseOne]

@@artemkras No, they're not holes. We don't know exactly what they are because no information can cross the event horizon. The hypothesis is based on the math that supports the existence of white holes. But you were too busy trying to be a smug asshat than actually check and see if I might be referencing the work of actual scientists.

[@popeyedesailorman5225]

@@artemkras #burn

[@donkeysunited]

I've said similar here, half in jest. I'm not a scientist either and all this is new to me. But logically, if there is something that is sucking in matter and something that is spewing out matter, then perhaps they are linked. And if that link isn't apparent in our universe then perhaps it's in a different universe. Or, at the very least, outside our universe. We currently have no way of proving anything of course but it is nice to speculate.

[@popeyedesailorman5225]

@@donkeysunited I dont think black holes suck matter in per se. Its that they create such a strong gravitational force that objects are naturally attracted to them by the curvature of space/time the black hole creates. Many stars orbit black holes and dont necessarily have to fall into the black holes and our solar system revolves around a super massive black hole. The event horizon is an area that once passed the gravitational effects are so strong that not even light can escape but again I wouldnt put it that the black hole is sucking it in as this creates the wrong impression. To me it would be like jumping from an airplane and saying the ground is sucking you toward it. That being said we dont know what happens after the event horizon, though some theories would be more valid than others the truth is that anything could be happening. (I'm not a scientist either).

[@Xalvador_Ysellian]

I love how passionate about you are about the things you talk about! Thank you for doing this for the world :)

[@voxfan7403]

Every black hole is a white hole in a parallel universe.

[@sohinidutta97]

This was so fascinating! As a Cosmology student (in the process of actually applying to Oxford lol), this reignited my passion for the subject 😍😍😍😍😍😍 When you are studying it technically and get down into all the maths and the simulations, I feel like some of the fascinations sometimes gets lost. It's wonderful to take a step back and be reminded of why I am doing what I am doing in the first place! The Physics of it is simply mind-boggling 😍😍 Thank you for sharing your excitement about these things!!

[@varunv2584]

I disagree, I think the mathematics of it is also fascinating.

[@hrperformance]

I know the feeling! 😭😂 Good luck with your application dude 👍🏽

[@annunacky4463]

I sometimes think a black hole could cause many many small white holes in another dimension, perhaps called particles in our universe. Sorta like a manifold of paths that fill our world with vortexing fields we call stuff. Like a big recycle plant. Ok I’m out.

[@reasonerenlightened2456]

​@Amanda Blair I know that such insane amount of energy required to start the BIG BANG can not just spontaneously spring into existence. There must be some build up of that energy as a result of a process.

[@owlredshift]

@@annunacky4463 Please, go on! I'm down for some equations and details. How's it all correspond, I like the direction you were headed in but there's lots of gaps to fill in. Do you posit that it is a better theory than the current one, a supplement to it (if so does it at least fit with our rock solid empirically gained understandings?), or is it just a cool idea? I hope this does not read in a judgemental way.

[@bannisher]

I've always wondered this. A massive black hole so big it finally broke through whatever separates realities.

[@I_am_evil.]

Maybe black holes are the only thing consistent between realities. and all the matter that falls in from each reality feeds the black hole. Which might explain why a lot of black holes are much much bigger than they should be.

[@5ebliminal]

​@@I_am_evil.With this kind of thinking dark energy could be coming from a black hole connected to some other reality and same could be said for the source of gravity?

[@5ebliminal]

Wait and if time and space are reversed in black holes then maybe our universe is just a byproduct of time and matter leaking intra reality? Idk stoner shit😂

[@JoannaHammond]

I know I'm being picky @7:50 . We have not observed a black hole, we have observed the effect of a black hole in a region.

[@matthewdoy1132]

Love your passion and enthusiasm. You are a perfect advert for encouraging more women into astrophysics. You show that it is not impossible. Keep up the great work. Like another comment said, you are a great role model

[@arcadealchemist]

tbh women are perfect for modern day science cos they don't QUESTION what they been taught.

[@trunksgx1]

@@arcadealchemist I know it's stupid to give trolls attention, but, what on earth do you think feminism is about? Not questioning prevailing social norms and ideas about gender? And what exactly is so revolutionary about your backward ass sexism?

[@arcadealchemist]

it means nothing, period> the real reason FEMINISM was introduced is the same reason any identitarianism is introduced, they give RIGHTS to identity classes that subvert freedoms of Individuals, i mean lets not go as far as talk about IQ levels but anyone who thinks Feminism is about FREEDOM is moronic, the whole gender crap was seeded in 2008 though the Obama administration, now we have adults with a perverted view of the world and because they are being platformed by corporations they are being used to literally create a market loop. You think what i say is sexist i just see the world in it's TRUE form because I'm not delusional about my individuality and that's why you and people who think like you are always going to be inferior beasts.

[@perdidoatlantic]

That’s very sexist.

[@PJMM]

​@@trunksgx1 As visible, your assumption about trolls is absolutely right! They showed to be so far off reality, probably wanting to provoke negativity and a destructive atmosphere here in the comments. I always find it much more useful to, as a community, direct our attention on building a positive atmosphere instead. Emphasising our points and making room for _constructive_ criticism and mutual respectful dialogue here. So I really would like to underline @Matthew's comment and agree, she is a great role model and I can also imagine it to be really encouraging to women who might consider a career in science, generally!

[@divarin1]

Since I was a teenager I've had the thought that our universe was contained within a black hole of a much larger parent universe and that within black holes in our universe there are smaller "child" universes. But I'm no astrophysicist and wouldn't have any idea how to go about testing something like that.

[@danielduncan6806]

If that was ever the case, and who am I to say it isn't, then there could never and would never be a way to test and/or prove it.

[@BrandonBeans]

Can't test but probably true. However the theory more religious or philosophical at this point.

[@murphmurph2124]

Very interesting thought.

[@zacmac]

@Oni and since being inside the black hole all the dimension of space lead to the singularity or the end of time (the cause of the arrow of time).

[@seonteeaika]

​@Oni >"Since all galaxies and stars within would be infinitely going towards the singularity". Not towards singularity but FROM singularity. If there is a universe inside a blackhole, then the habitants percieve the "gateway" as a whitehole. It pushes everything away from it and there only a single 1 white hole in the whole universe you perceive at the time. This also explains why universe is expanding, but the space we have is somehow illusive and probably if you kept going forward you would come back to where you started from. We need to find and escape through the whitehole to the grander reality.

[@holdinmuhl4959]

Best explanations ever. There are a very few videos except those from Dr. Becky that may explain such things so clearly and understandable. Dr. Becky is able to structure her thoughts so that a layman can follow. Only those who have really understood the matter themselves can explain it in this way.

[@TheTwitGamer]

So what is it?

[@nunyabusiness-vu3ss]

I saw what you did there, sir. Danny John-Jules would approve. :)

[@latheofheaven1017]

"There's like a weird crease in the curtains that kind of looks like a velociraptor". Now there's a sentence that's unlikely to have been said before!

[@KutWrite]

I remember the series "Lathe of Heaven!" It was fascinating, esp. the "cure" for the guy with the dreams.

[@ArveEriksson]

Yep, definitely the stuff of TL;DW right there.

[@jonaskeller4687]

I think you underestimate the number of people in the history of mankind who have been really, really high.

[@ArveEriksson]

@@jonaskeller4687 Lol! No doubt, but... I've had cause to consider that possibility.

[@bremCZ]

I'm sure it's been said about beef curtains.

[@caseyv8322]

You're like a british, galaxy-obsessed version of Hannah Bayles. I'm obsessed with your videos.

[@luudest]

3:07 What a credit! „Credit: Schwarzschild (1916)“

[@ibrahimmoinhaque569]

Fastest click in the west

[@seanalbin]

I just love the way you explain things, complicated things for the most of us to grip, but you make it a little bit more understandable.

[@thomast6741]

With a blackhole, my understanding is it will eventually "dissolve" from Hawking's Radiation. Would there be an equivalent effect mathematically for a White hole?

[@chronosschiron]

what if time right? what if outside this universe are clumps of matter of black holes so large and vast that they keep bumping into each other and getitng larger and once in a while they get tosome point where they are too large and ...white hole happens to a degree. think of the sci fi show andromeda when they fired 40 soalr system busting weapons at a blakc hole and temporarily caused it to beccome a white hole or mini big bang just scale this up where the black hole is the size of universe and something as big glanced it or bigger smashed into it and caused ...our universe.... tehcnically there will never be any way to observe or prove this cern even tried a few times ot punch holes in universe and apprently the fabric is pretty darn tough

[@vwlssnvwls3262]

All my life, since we read a book about time travel in elementary school, I have always wondered about what I would do if I could view points in time, but not actually be there or interact. The top of my list of things to view has always been the big bang. I would love to be able to view that point in time, or I suppose the beginning of time.

[@spaceman081447]

@Vwlss Nvwls RE: ". . . I have always wondered about what I would do if I could view points in time, but not actually be there or interact." For that to happen, there would have to be some kind of particle or wave that could instantaneously travel back through time, of being focused on a particular time, and that would be capable of being generated and received by human electronics.

[@Caier127]

I have thought about this theory for about 4 months now, its great that someone finally clarified things.

[@indianajon7980]

Brilliant, informative and impassioned description. But all I could think about was that scene in red dwarf when Kryton is trying to explain a white hole 😋

[@MrOttman001]

So what is it?!

[@adenansu]

@@MrOttman001 I've never seen one before -- no one has -- but I'm guessing it's a white hole.

[@TheAbstruseOne]

Whiteholespewingtimeenginesdeadadviceplease.

[@adenansu]

@@TheAbstruseOne I can't understand a word you're saying

[@JourneymanObfuscator]

Came to the comments to find my people. Hello fellow Dwarfers! Once again Red Dwarf, in all its ridiculousness has proven to be one of the most complicated pieces of fiction ever written.

[@mjmeans7983]

I like the idea that what we see as the microwave background is actually the inside shell of a black hole in another universe (with potentially different physical laws) and our universe is actually falling into a gravity well getting smaller and smaller (from the perspective of the other universe), shrinking. But because our own perspective is also shrinking, it looks to us like our universe is expanding. I have no idea if this idea could be supported mathematically.

[@adameager7114]

I agree with this perspective wholeheartedly! I only have a youtube education in cosmology, but I'm obsessed with contemplating the nature of the universe, and your description is a treatise to my own philosophical conclusions. You expressed the idea very well, thank you! I heard Becky say that the big bang couldn't be a white hole because spacetime itself was being emitted from it, ergo the singularity has no location in spacetime. Is it not also true that spacetime itself flows toward the singularity of black holes? Now if I may share my own speculation: Perhaps there is only one black hole, or rather there aren't any at all, but we are treated to a multitude of perspective-based illusions that we call black holes. I think that if the singularity of the big bang can be seen as the beginning of time, then a black hole is a perfectly valid end of time. Except ... I don't think that's quite right. I think these cosmic horizons are just the apparent locations of regions of "time reversal" where spacetime sort of ... folds back on itself - at least from our perspective. I've heard it described that an observer falling into a black hole would (hypothetically) witness the rest of the history of our universe unfold, seeing the heat death of the universe at the event horizon. However, I feel that approaching that horizon, for the observer, would only cause it to recede. You can't get to the point where the the railroad tracks come together. It's just spatiotemporal(sp?) paralax! I hope that reads well, it's a difficult idea to express with our current language and models.

[@reasonerenlightened2456]

The insane amount of energy required to start the BIG BANG can not just spontaneously spring into existence. There must be some build up of that energy as a result of a process.

[@davidwalker3804]

Your description sounds like universes within universes. First the mind melt concerned whether the universe was finite or infinite and we concluded that we are within curved time space to resolve those two conflicting concepts. And now we are contemplating nesting the “spheres” within “spheres” as a means of resolving singularities. Weird, very weird, but still obviously imaginable. What’s next? That’s a fascinating part of cosmology - no matter how bizarre, it’s been imaginable. A hard part is still gaining acceptance for the new concepts. Hopefully great science will continue and regain society’s respect again.

[@christianosminroden7878]

@@reasonerenlightened2456 First, that amount of energy is „insane“ only from our limited perspective as tiny parts within that system. Second, you‘re completely avoiding the incredibly counterintuitive mathematical fact that any possible event, however insanely improbable, in the context of infinities becomes inevitable.

[@lizbmusic11]

@@adameager7114 love your thinking - my brain is currently folding in and out of itself thinking about all this :)

[@rosellabill]

Your thoughts for the viewer by appologizing for the jewelry was so nice of you. I love your videos.

[@CharlieSolis]

When I was getting my physics degree I was always under the impression from one of my professors that mathematically black holes could not exist without a white hole. Again as I understood it, this is the entire premise to how “wormholes” could form… can someone rectify this for me?

[@GiovannaIwishyou]

Well mathematically it is possible that every object has its inverse. So it's just theoretical possibility doesn't mean it actually exists (at least in our universe or at least until we discover it without any doubt).

[@scottdoesntmatter4409]

@@GiovannaIwishyou but remember, all those inverses have facial hair, esp goatees. It's a law.

[@costahadjis2146]

Your presentations are great ! i only know the basics about space, but you explain things so perfectly that even a brick wall would understand anything you talk about! I also love your enthusiasm when you talk about space, Keep it up ! 😁

[@mago5028]

It feels like science cannot make the connection that once a black hole accumulates enough mass in its parent universe it "breaks through" space time and spills out everything it has accumulated. The white hole is a "big bang", therefore we have not observed it so far. I have no idea about the math, but usually macro physics is fairly comparable to other processes we know in daily life and that intuitively makes the most sense to connect all these concepts :)

[@ashajacob8362]

Dr Becky! As someone who loves Space I'm a huge fan of your videos I have never seen such an enthusiastic Astrophysicist before😄 you explain complex concepts in a. Simple way.Thank you for this channel😊

[@Ligma-Balls-69]

She reminds me of Brian Cox

[@DrBecky]

Thanks Asha! Glad you like my videos 🤗👍

[@alwaysdisputin9930]

@@Ligma-Balls-69 I like Cox

[@flatearthjackal9201]

Space is fake AF research flat earth😁

[@ashajacob8362]

@@flatearthjackal9201 nice joke dumbass🤣 I guess you have all those stupid 100 conspiracy videos to debunk

[@Meesaiii]

You make me want to switch my major :( Space is just so freaking cool. I absolutely LOVE your channel! Thank you for doing this

[@junkmail4613]

Black hole time moving forward= white hole time moving backwards and vice-verse. so we're in a white hole (expanding) with a bunch of smaller black holes (contracting) I'm a 75 year old retired Electrical Engineer, and long since loosing my sharp crisp edge, However you Dr. still have explored this area to a much higher finer resolution, and so for you to have speculated as I said with the math and vision cultivated by your education, well I am much comforted that my shallow speculations may infact some day be born out. Thanks so much. And thanks for sharing the things you can actually see, and we can only imagine with your guidance and the guidance of other scientists. Please keep sharing, but always keep substantiating with the proper math and science and telescopic and CERN supported evidence. Thanks.

[@shineproductions4488]

Falling down the rabbit hole is an amazing thing.... sometimes. While watching this, I started to think what would happen if a black hole and white hole collided. Then you mentioned that a white hole would in theory become a black hole. Well if that is the case, at the big bang, the universe expanded until the white hole became a black hole and instead of expanding, the galaxies are being pulled back by a super massive black hole at the center of the universe. I have no idea, but it was fun to think about these things. Thanks for the awesome content.

[@claytongeist5783]

This is actually something I hadn't considered. It may very well be that, much like a supernova, the universe rapidly expanded due to such density of primordial spacetime energy, but that then some of the energy became a massive primordial blackhole, while the rest was drug through spacetime to become the rest of matter throughout; very interesting hypothesis for the "great attractor"!

[@FoXc123]

​@Clayton Geist No the great attractor is small and only accounts for like 50% of our movement in that direction the rest is explained by 2 or 3 galaxy super clusters in that direction unfortunately we just can't see in the direction of the great attractor right now because we're on the wrong side of our galaxy we can't see past our galactic core

[@kylelopez9640]

Becky goes so hard bruh. She don’t just have the good hair, she got the good brain.

[@Musix4me-Clarinet]

My _speculation_ is that there is an infinite field of energy at a wavelength/level that we cannot yet observe. When energy from this field becomes condensed enough, it forms matter. Matter _is_ these little knots of field energy. The condensing of this field into matter (and the more of it in clumps of matter) is what causes gravity. I also _speculate_ that the field tends towards its neutral state before it was perturbed. If matter sits still in the natural field, it tends to dissipate back to the state of the field. The density of the field lends energy to matter and, hence, gravity. In this paradigm, sit still in the field, and matter moves quickly towards resolution with the field. Move through the field, matter can take energy from the field and remain in the same state. So, move through the field and or experience more of it (density), and time (entropy) happens slower. Stop moving through the field, and time moves more quickly, moving toward entropy and returning the energy that made it to the field. I'm not a scientist and do not have the vocabulary to really describe my idea correctly. Hopefully, it is clear enough, though. *Maybe @DrBecky can elucidate where our current understanding of physics agrees or disagrees with these ideas.*

[@isaackitone]

Good hypothesis. How far have you gone with the paper?

[@Musix4me-Clarinet]

@@isaackitone Wait! *That wasn't enough?!*

[@isaackitone]

@@Musix4me-Clarinet Hehe. I want you to be cited by Dr. Becky. "@Musix4me-Clarinet and Collaborators"

[@thegreenmanofnorwich]

I'll forget most of the parts I just learned, but that's been a really interesting video, thank you

[@taxicabnumber1729]

Really flattering picture of Dr. Becky if you stop the video at 10:26

[@StockportJambo]

"So what is it?" - Cat

[@goldenknight578]

"I've never seen one before, no one has, But I'm guessing it's a white hole." Kryten

[@StockportJambo]

@@goldenknight578 So what is it?

[@goldenknight578]

@@StockportJambo I've never seen one before, no one has, But I'm guessing it's a white hole.

[@StockportJambo]

@@goldenknight578 So you mean that thing is spewing time back out into space?

[@goldenknight578]

@@StockportJambo Precisely. That's why we're experiencing these curious time phenomena on board.

[@primus4cameron]

So if we're running every thing backwards it makes one wonder if there's something analogous to Hawking radiation leaking INTO this imagined white hole. A trigger for Penrose's CCC?

[@primus4cameron]

@@nemlehetkurvopica2454 Yeah I agree - mine was simply a provocative comment - but white holes are pretty nonsensical as well. But to be fair (my understanding is) CCC is too poorly developed to be "disproved". Is it not currently accepted that, in the unimaginably distant future, all matter will find its way into black holes, which will all eventually (Hawking) radiate, just leaving a universe with ONLY entangled photons. Each single photon will spread to occupy all of space (Schrodinger) in the 'same' place (no Pauli exclusion) thus leaving a universe WITHOUT time or dimension. Measurement of any kind becomes nonsensical, kind of like... the beginning!

[@ronjon7942]

People of today are so fortunate for people like Dr. Becky…if I had been exposed to hers and others interpretations, my life would have been so fundamentally different. I know people now take this for granted, but for so long, us average folk have been disadvantaged. This is great for humanity. Nice work.

[@danuttall]

Doesn't a singularity usually mean, "The math breaks down here?" and that we need a working version of quantum gravity to get beyond it?

[@dickdeoreo]

It looks like your answers are subliminal religious messages

[@ewqdsacxz765]

As of now, it always does. It means an area or point of space where the density of matter is high enough that gravitational effects cannot remain negligible on the quantum scale, thus escaping description by either general relativity or quantum theory alone. Such areas of space are theorized to have been of two types: one through the mechanism of gravitational collapse in the case of black holes, as well as one through grand unification in the case of the early Universe between the Planck Epoch and the Inflationary Epoch according to Big Bang cosmology.

[@chronosschiron]

there is a saying that if you get a sngularity in your math its the amth that is wrong....you cannot have an existing thing be infinite....in math ...it wrecks things...

[@chronosschiron]

@Blah blah Halb halb haha |My math doesn't break.." your so broken its not funny math cant deal with it cause ther eis no amth that can no matter what scale you try a singularity 100% of time means the math is broken and doesnt work you will lie if you say otherwise and any true physacist will agree...its why they keep trying differant ways to "MAKE STUFF WORK"

[@chronosschiron]

@Blah blah Halb halb thats an incorrect supposition that if you cant see your start how will you then predict a path of said "stuff" you cant and thus this is also why there is descrpanxcies in expansion of universe speeds at differant times of the universe see comsic inflation issues and why gooth i ferget exact spelling tried for years and made a patch work over existing math ot make somehting appear to work , but cant explain why it happens this is my issue the patching over pathcing to just make things work is realllllllly stretching the limits of what is probably really happening there at beginning and like i said if nothing can escape a black hole how did the universe even exist in the state before the big bang you cant answer that cause answering calls into question all the science that comes after which is as they say anomyalous to be nice

[@anywherepcgeeks827]

I appreciate the way you explain everything so eloquently and clearly. I've spent my entire life reading and studying things about space, astronomy, and astrophysics, including orbital mechanics, ever since I was 8 years old. Most of my learning is now coming via educational KZbin videos like yours, and I thank you for helping me continue my learning. I also enjoyed the little bit of singing you did at the end of this video. You make me wish you lived in Fairfield, Iowa, so I could accompany you on my guitar. I've been playing since I was 12. By way of introduction, my real name is Gerard and I am indeed a computer geek. I run my own business building and repairing computers, and doing networking and all manner of enjoyable computer related stuff.

[@godsbeautifulflatearth]

You should read the Bible.

[@lurkst3r]

Kinda blows my mind when Dr Becky does a vod on a topic I've wondered about in a tweet.

[@setokaiba6758]

I had a really interesting theory about White Holes. What if a white hole was anti-matter condensed into an infinitely small point, but because anti-matter and normal matter react differently than each other, could anti gravity act on antimatter the same way that gravity acts on normal matter?

[@dkeffectdetector8920]

anti matter and matter is the very same mass

[@anonymususer1728]

Ok, but if a white hole is anti-matter, guess what it spews out ? Anti-matter.

[@blackflash-gf9ln]

I think you mean negative mass which is completely different. Anti matter is jjst anti protons and electron which still have positive mass meaning positive gravity still acts on it while negative mass is something completely different and could open up a discussion about it

[@joelheath2746]

@@blackflash-gf9ln Are you that versed in my theory? I said what I said, and until we are able to do a detailed study of a white hole, or a study disproves my theory or gives me sufficient reason to call my own theory into legitimate question, I will stand by my theory.

[@joelheath2746]

@@dkeffectdetector8920 true but they tend to annihilate one another when they come into contact with each other, which is partially what lead me to the aforementioned theory.

[@christiebalanduk3576]

I'm so glad you covered this. Someone asked me once what i thought about white holes, I'd never heard the term before, and when they said it was the exact opposite of a black hole my instince was "that couldn't exist. It violates conservation of mass and energy on way too large a scale" it's nice to hear the models back up that instinct.

[@rappar9673]

Cosmic voids are white holes: the dark energy is just the opposite of the positive spacetime curvature that mass creates. The absense of mass, and the presence of electromagnetic ration in the voids creates negative spacetime curvature, which will expand and further enlarge the voids. Just like black holes form first from clouds of gases that slowly coalesce into stars, etc, etc, white holes slowly form from the voids that form between those concentrations of mass. Not just that, but voids emmit matter and radiation since the vaccum of space constantly produces virtual particles and photons. Cheers!

[@jsytac]

“…so what is it?” Surely this is a precursor to a reaction video on Red Dwarf’s ‘White Hole’ episode!

[@Metalkatt]

Oh, at least it wasn't just me.

[@vincentpelletier57]

"I think we have just encountered the middle of this conversation!"

[@necrosunderground]

@@vincentpelletier57 "So what is it?"

[@Kroesis]

I've never seen it before, no-one has, but I'm guessing it's a white hole...

[@LuDux]

Somebody punch @@necrosundergroundout

[@chooseyouhandle]

I was expecting a red dwarf reference

[@Matt_H384]

A *white* hole?

[@marko247]

What time phenomena?

[@chooseyouhandle]

@@marko247 so what is it?

[@RBEmpathy]

Glad to find other smegheads in the wild.

[@marko247]

@@chooseyouhandle I've never seen one before, no one has - but I'm guessing it's a white hole.

[@safala]

This and 'could there possibly be an universe inside blackholes?' have been two of the many questions I've been curious about for a long time now. Thank you for answering one of these and for sort of assuring me that the second question is not just me being stupid.

[@josephmoreno81]

Just found your channel and loving it! I've recently accepted that life took me in other directions after earning my physics degree, so enjoying it vicariously through you. Keep it up!

[@owlredshift]

Did something better come along despite your degree? Because of it? Or did you decide you were personally over it after graduation? I'd be interested because of...reasons.

[@josephmoreno81]

@@owlredshift I was a triple science major and eventually went on to get my master's in business. I ended up working as a chemist at a local lab because that was my stronger subject, but always missed my physics fun. Now, I'm more of a businessman because it's paying better and more autonomous. Whatever your situation, degrees are expensive. They're usually worth it, but make sure you use them to better yourself and find yourself some true happiness, otherwise they're worthless. Hang in there and I'll be thinking of you!

[@ek12474]

TV show to watch: Your description of a white hole reminded me of the finale double episode of Star Trek Next Generation. Without giving it all away, it has to do with a phenomenon that happens in the future that goes backward in time to affect the past. Would love to see you watch this one. Always a fan-- Ed

[@RobertLeather]

If I remember I’d had a whopping great big gaff in it. It’s called “All Good Things...” It’s the very last two episodes and it joins the last episodes to the first.

[@Itsthatoneguy371]

“All the way back from 1974”, ouch. I was born in ‘74. Love your channel!!!

[@jordenpowell5760]

I've always loves quantum mechanics and it does lead to some amazing theories. Like what if due the nature of quantum mechanics and how electrons are not in one spot but multiple at once maybe the white hole was the beginning and all the universe was contained in one spot just because it did in this reality and no other reason. It could happen, and so it did, yet we have no way to quantify or prove that with the way we look at science as it is now. I'm curious to see what developments in that field happen before i die

[@randywhite1724]

It’s always interesting to me that as smart and experienced as we are we really only understand a small amount of the big questions of life. As example: Assuming the Big Bang started it all for us; what existed before the Big Bang? What caused the Big Bang? Was there other Big Bangs and therefore other universes? Hundreds and hundreds of other questions arise.

[@arkvsi8142]

1- everything existed before the big bang, but in other form 2- the big bang may be the rebirth of the universe, that may have happened unknown amount of times before the last one

[@witchdoctor6502]

funny I always look at what we know and think how the hell we even understood that much when our entire existence is less than blink of eye and we are just a speck of dust

[@ThatCrazyKid0007]

@@arkvsi8142 One of many possible answers that are all equally unprovable and thus equally worthless.

[@russellbaston974]

And why is anything required to exist?

[@aspacelex]

What's "before the Big Bang" even supposed to mean? Time began at that moment.

[@markedwardsuk]

Hypothesis About Black Holes and White Holes Introduction Black holes and white holes are two of the most fascinating and mysterious objects in the universe. Black holes are regions of spacetime where the gravity is so strong that nothing, not even light, can escape. White holes are the opposite of black holes, and are thought to be regions of spacetime where matter and energy can escape. The existence of white holes is still hypothetical, but there is some theoretical evidence to support their existence. One hypothesis is that black holes and white holes are the same thing at different points in time. Hypothesis The hypothesis that black holes and white holes are the same thing at different points in time is based on the following observations: • Light does not experience time. • Matter and energy that pass the event horizon of a black hole become mass-energy, which does not experience time. • The universe is expanding at an accelerating rate. The hypothesis is that when matter and energy pass the event horizon of a black hole, they are essentially frozen in time. At a specific mass, which is the mass of a universe, the black hole instantly becomes a white hole and the matter and energy are ejected back into the universe. The hypothesis also suggests that the universe beyond our visible universe is filled with forming universe-sized singularities. As soon as these singularities reach the required mass to form a new universe, they turn into white holes and begin to expand. Thermodynamics One way to think about the hypothesis is from a thermodynamic perspective. Thermodynamics is the study of how heat and energy are transferred between systems. The second law of thermodynamics states that the entropy of an isolated system always increases. Entropy is a measure of the disorder of a system. The hypothesis is that when a universe-sized singularity mass is reached the core of the exotic mass-energy inside the singlarity reaches absolute zero. Absolute zero is the lowest possible temperature, and at absolute zero, there is no motion of atoms or molecules. This means that the entropy of the system is zero. At absolute zero, the exotic mass-energy inside the singularity is in a state of perfect order. This is the condition necessary for expansion to occur. When the singularity reaches absolute zero at its core while surrounded with hot energy it expands into a new universe. Conclusion The hypothesis that black holes and white holes are the same thing at different points in time is a fascinating and intriguing one. It is a hypothesis that is supported by some theoretical evidence, but it is still too early to say whether or not it is correct. If the hypothesis is correct, it would have profound implications for our understanding of the universe. It would mean that the universe is not a static object, but rather a dynamic and ever-changing system. It would also mean that the universe is not infinite, but rather a collection of finite universes. More research is needed to test the hypothesis, but it is a hypothesis that has the potential to revolutionize our understanding of the universe.

[@danesorensen1775]

"We're on a massive tangent here..." But if the tangent's massive enough, it will slow time relative to the rest of the video and you'll have as much time as you need to talk about it!

[@aaronmicalowe]

*Human compression algorithm:* 10% of original file size is really good. *Universe compression before big bang:* 0.000000000000000000000000000000000000000000000000000000001% of universe *Humans:* 🤯

[@Paplefication]

No Red Dwarf reference‽ Blasphemy! (An otherwise great video though! 😅)

[@goldenknight578]

I confess I had that scene going through my head the entire time.

[@backtoearth1983]

So what is it?

[@peterdefrankrijker]

@@backtoearth1983I’ve never seen one before, no-one has, but I’m guessing it’s a white hole.

[@bipolarbear9917]

If we call spacetime 4 dimensional, with time being a 4th temporal dimension. How does that fit in with a 4th spatial dimension? It’s very confusing. I think Stephen Wolfram might be correct in saying, the concept of spacetime may be misleading. He says it may be necessary to think of time as something separate from 3 dimensional space. They are obviously connected, but Wolfram might have a point

[@PaulV3D]

"So what is it?" "No one's seen one before, no one has but I'm guessing it's a white hole!" "A white hole?" "Every action has an equal and opposite reaction. A black hole sucks time and matter out of the universe. A white hole returns it." "Is that thing spewing time back into the universe?"

[@pauljackson5343]

“So what is it?!”

[@mattsadventureswithart5764]

@@pauljackson5343 So what is it? Only joking

[@ernieeats6113]

I was waiting for this

[@Goldenretriever-k8m]

brilliant video, you put together so many things that I have heard over the years about quantum gravity and why we need a unified theory and how it relates to the big bang and black holes, and made it easy to understand, and also easy to understand just why its so frustrating to not have that 'unified theory' we hear about so often.

[@darkstatehk]

1) Paradox. Everyone loves a paradox! 2) If infinity wasn't a thing, we could solve the universe already. 3) Great channel!! :)

[@viceroysStuff]

"And like how a black hole once its formed, is gonna live forever, and exist forever afterwards.". Hawking radiation suggests otherwise.

[@RaubeR666]

Given the fact Hawking radiation goes in quanta, there is a point, when an infinitely small/exhausted black hole can no longer emit any quantum of such radiation, as it is already smaller than that, thought it still exists. Would that qualify for "forever"?

[@chronosschiron]

@@RaubeR666 no it would in effect vanish at some point as all its mass cant keep tight enough to be said to be a black hole anymore

[@RaubeR666]

​@@chronosschiron please, have a look at this kzbin.info/www/bejne/qaO5fJ2No5dpd7M explanation, maybe you'll find it a bit more convincing

[@chronosschiron]

@@RaubeR666 ive already seen that and here is why that prolly isnt case either think of one going into your head ya...ya um owww....and the lhc proved they evaporate faster the smaller they are...so...ya also not probable

[@chronosschiron]

@@RaubeR666 also whikle our time of observing the sky is not long we have never seen ever any evidence of any black hole exploding it never happens they jsut gobble up and get bigger is there a point when they are too big they rip themsleves apart ...maybe , maybe its about the size that woudl contain all the matter in this universe....\

[@Metalkatt]

"So, what is it?" "I've never seen one before - no one has - but I'm guessing it's a white hole." "A white hole?" *could not stop thinking "So, what is it?" at random points during this*

[@przemysawjozwiak144]

No one knows. Probably soon there will be another theory about theory that describe this theory 😉

[@necrosunderground]

That was the first thing I thought of as soon as I saw the title XD

[@przemysawjozwiak144]

The most honest answer without scientific degree is: white hole is the exit of black hole in another universe or dimention And now let some scientice try to prove that I am wrong 😉

[@necrosunderground]

@@przemysawjozwiak144 not a fan of Red Dwarf, I take it?

[@przemysawjozwiak144]

@@necrosunderground why would you think like that?

[@benmcelwain5301]

According to PBS space time Black holes contain two opposing flows of time. So could a single object be both a white hole and a black hole dependant on which of the two flows you are observing?

[@stephensorrell4550]

That was a fine bit of science communication! Thank you Dr. Becky. And hello from Kentucky👍

[@DrBecky]

Hi Kentucky 👋

[@davidhoward437]

Love your chicken!

[@peterbriggs3408]

I've been away from this too long. So no concepts of black and white holes being either end of a wormhole then? I remember reading scientific books when I was a teenager that speculated on this.

[@surrealsurrealism]

I like to think of the universe in the 2D analogy of a coin: 1 side of the coin is time flowing in the direction we are familiar with and the other side of the coin is time flowing in the reverse to what we are familiar with. Each black hole on our side being connected to a white hole on the reverse side of the coin and each black hole on the reverse side of the coin connected to a white hole on our side of the coin with energy being transferred or recycled through this interaction. Probably impossible to prove or disprove with our current understanding but a fun thought experiment none the less

[@gideonsleftnut7627]

@@surrealsurrealism yes, like a twin universe that is connected and interacting with our universe at T = 0. But our twin currently does not exist because it transferred all its energy and space-time to our universe through a white hole. And after our universe stops expanding and condenses once more. Our universe will become a singularity again. And at some point all this energy will break through the interdimensional barrier or create a new dimension? As a result our universe will stop existing. And the cycle begins anew

[@surrealsurrealism]

@@gideonsleftnut7627 possibly, I like to think that they both exist as part of the same universe but travelling in different time directions and that we only have no information on the reverse time portion of the universe simply because it could never overlap with out light cone(or time cone of causality) The information is lost to us on entering blackholes but maybe just maybe echoed or imprinted in the CMB apon exiting a white hole, perhaps this is one way for the information to be preserved. For example: particle A+ goes into a black hole in T+ side of the universe, comes out of a white hole in T- side of the universe as particle A- with the same properties as particle A+ just time reversed. After some indeterminate period of time particle A- goes into a black hole in T- side of the universe and comes out of a white hole in T+ side of the universe. Then imagine the same happening with every single black and white hole on both time sides of the universe continually. That’s the idea I’m imagining, again fun idea but just that an idea

[@mickles1975]

"Do all black holes contain other universes entirely" Man, I thought that when I was like 12 or something. These physicists need to catch up.

[@darren8453]

I like the "event horizons contain more universes" idea, mainly because it is how Men In Black would see this.

[@psychohist]

It's also painfully clear from the math. Someone who knows relativity theory and doesn't believe in each black hole containing its own universe - including the black hole our universe is in - is like someone who knows quantum theory but doesn't believe in entanglement and the superposition of cats.

[@shaunmaher278]

OK, here's my question: Would you like some toast?

[@Metalkatt]

You are a bread-obsessed electrical appliance.

[@StockportJambo]

Look, I don't want any toast, and he doesn't want any toast. In fact, no-one around 'ere wants any toast! Or muffins, we don't like muffins round 'ere! We don't want muffins, no toast, buns, baps, baguettes or bagels, no croissants, no crumpets, no teacakes, no potato cakes and no hot cross buns! And *definitely* ... no smegging flapjacks!

[@Metalkatt]

@@StockportJambo Ah, so you're a waffle man!

[@jeremiahpratt2492]

This video somewhat tackles my question of the universe staring from a singularity, and such the universe always existed within the "nothingness". And that universes, or rather, every possible state of imaginable whatevers, in fact, simultaneously exists within a singular point. And so the entire universe can be modeled as a singularity. In the simplest terms I've been able to put it, nothing, and everything, are curiously similar.

[@jeremiahpratt2492]

Governing the logic that "everything" contains all positive, negative, and imaginary integers, and uses every operation, and so everything cancels eachother out, resulting in null. So, in a sense everything and nothing are equivalent, interchangeable, or perhaps even synonymous. That is of course thinking about everything as a whole, which is perhaps a little to non-euclidian for our brains. It turns out everything is Schrödinger's cat? lol

[@jozefdebeer9807]

Thank you for your clear explanation of the difference between a white hole and the singularity at the beginning of the universe. I love your channel

[@sjcwoor]

A brilliant moment that made me chuckle when you basically told the idea of "a moment of creation" to bugger off and replaced it with 'the evolution of the universe' Pro Move

[@Underground247]

Wouldn’t that suggest the white hole is still out there somewhere which doesn’t make sense as we would be able to detect all matter coming from a central location in the universe.

[@jacobmccain8082]

This is my favorite theory. I think yes, and eventually all black holes will merge and reach an age and/or mass where they flip and explode everything back into existence again aka the reset button.

[@dbuckleton]

Black holes slowly die and the universe is pushing them further apart, so would be hard to make that work.

[@jacobmccain8082]

@@dbuckleton The statement that black holes die is purely theoretical. As is my theory stated above. I wonder what happens when Galaxies merge and their supermassives combine.. Could they attract others? Not sure...Just an idea that seemed to make sense to me. No idea if it's anywhere close or way off and sadly we'll probably never know.

[@astro6774]

You could crush everything in the local group into a giga black hole, but the total amount of mass in the region would stay the same and thus wouldn't really be more gravitationally attractive to things outside of the local group than it already is. Space would continue expanding things apart regardless. Until we understand dark energy better it's hard to say whether infinite expansion will win out or not, but thus far it looks like it's winning.

[@Crootcovitz]

Can we get that Interstellar tangent in full in a separate video sometime? :)

[@Cbricklyne]

THIS!

[@anscriv]

About 10 years ago I was convinced the universe was made by “sausage theory” (infinite string of sausages) but never heard anyone else talk about it. So nice to actually hear someone explain this theory with actual common sense!!!

[@DogWalkerBill]

So instead of "General Relativity" we need a theory of "Specific Locality"!

[@dizdizzy8937]

Wonderful and entertaining! Thank you for sharing

[@dampvillage]

Is there a way to judge direction of the universes expansion from our point of reference to determine the center point of the universe...

[@warehouselead]

She built us up for half the video just to tare us back down lol. As always thanks for sharing!

[@thesprawl2361]

"A white hole is the exact opposite of a black hole" - shouldn't the opposite of a black hole be a white...mountain?

[@junewalker9341]

White pole black hole

[@herculesvdn2]

One question i have is how can we know if the curvature of space time is space and time invariant? How to know if the same mass in a different point in space and time could curve space more or less?

[@GSandSDS]

GUT = gravity+weak+electromagnetism+strong? I always thought GUT was just weak+electromagnetism+strong only and with gravity it becomes the TOE (Theory of Everything).

[@gammarayneutrino8413]

Yeah, she said it wrongly. GUT explains the electronuclear force, TOE explains the electronuclear force + gravity

[@ashtonjackfanny]

skeez

[@dune11111]

agreed

[@darrendrapkin4508]

The first time I heard about white holes was at the British Association, where someone gave a lecture on why white holes do not exist. One of his arguments was, basically, that since the formation of black holes is favoured by thermodynamics, and that white holes may well be time reversed black holes, then the formation of white holes is not favoured by thermodynamics. Therefore, if there are black holes there are no white holes. This was shortly before the first back holes were discovered.

[@flyingskyward2153]

A white hole? So what is it?

[@garyl5128]

I've never seen one before, no one has... kzbin.info/www/bejne/iqm6f2t3nbN4iJI

[@user-up5di8ln7g]

i thought of this when i was about eight, but never saw anybody actually talk about it 😭 i don’t fully understand the physics but i think it’s a very interesting theory

[@Rankbaajin]

Never ever have I been more tempted to make a Beavis and Butthead reference

[@J4-kjtdr8775]

Do we know what negentropy looks like or if runnaway gravity can create negentropy can a black hole compress things beyond the Plank length. maybe JWT can help?

[@laenitadejonge3796]

Thank you Dr. Becky for saying that Interstellar's black hole scenario also annoyed you, as an astrophysics student myself, I was super annoyed and everyone was hammering down on me for dissing Interstellar.