Was the Big Bang a WHITE hole?

00:00 - What are white holes?
01:16 - What are singularities?
03:19 - The singulairty in the early universe
04:45 - How come the universe wasn't trapped in a black hole?
06:19 - The difference between the Big Bang and a white hole singularity.
09:35 - So what is the Big Bang?
11:11 - A Grand Unified Theory: THE DREAM

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👩🏽‍💻 I'm Dr Becky Smethurst, an astrophysicist at the University of Oxford (Christ Church). I love making videos about science with an unnatural level of enthusiasm. I like to focus on how we know things, not just what we know. And especially, the things we still don't know. If you've ever wondered about something in space and couldn't find an answer online - you can ask me! My day job is to do research into how supermassive black holes can affect the galaxies that they live in. In particular, I look at whether the energy output from the disk of material orbiting around a growing supermassive black hole can stop a galaxy from forming stars.

[C.Y.]

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!

[egyeneskifli]

"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.

[christophermarotta]

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

[morlath]

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!

[williamderkatzen]

“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?

[merezko]

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 :)

[andrewpaul]

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 :)

[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.

[bbeen]

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

[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.

[costahadjis]

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 ! 😁

[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.

[nicolascrevecoeur]

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

[armyofshea]

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.

[Marcbr]

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🙈😊

[holdinmuhl]

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.

[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.

[Xalvador_Ysellian]

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

[paulfairchild]

Very good lecture!!! As I’ve wondered for many years, how this universe came to be and how amazingly complex it is, you have presented this complex question very well with the scientific information of today. I thank you!

[caseyv]

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