@misukachao46

For god sake can we leave god out of the discussion on physics?
The notion of god has nothing to do with this, it should be under the discussion on anthropology.
However the question is still not answered. Its all very well to say it all came from nothing, when that isn't the truth. We need to have some proper definitions of what theses quantum physicist call 'nothing' - because it is instead totally full up with quantum fluctuations, in fact there is no such thing as empty space, no matter how small you go, there is 'something' there - energy fluctuations huh.  Which means we have to go searching for the next turtle down.

@AurelienCarnoy

0:44 if a baby universe where to form, from the inside it would look like it is expanding but frim the outside is would look like a black hole."
So dark energy is gravity seen from an other angle.
So every black hole is a white hole and a universe depending in where you look at is.
So quantum fluctuations also fluctuate at large scale, generating energy differential, wich generates a flow of matter (we call gravity) into streams (filaments) and pooling into clumps growing into black hole.
(Quantum gravity for you)

Other visualisation: Cymatics.
The area that have large amplitude "repelles" the sand that gathers in smaller amplitude area.
The vibration acts like a conveyor belt of matter. The vibration acts like gravity. 
It is not that spacetime is bent by matter. Spacetime vibrates and the vibration is crushed by matter. But like a battle rope, the vibration is pushing matter.
It looks like the pilot wave theory.

Let me know what you think.
Enjoy

Edit: if at the center of a hypothetical hollow planet we experience zero gravity, then the same applies at the center of a black hole. So zero gravity at the center of a black hole.

Spacetime being stretched looks like expansion from the point of view of the singularity.

A white hole would look like a big bang.

@EGarrett01

From what I gather, it's because it would be moving away from our own at an astronomical speed. Like if I was blowing up a balloon as I was running away from you. I think the concept of a 4th/5th/6th dimension lets it "move away" in this manner.

@haroldhart2688

Krauss  belongs in a Multiple Myeloma Universe
because he hasn't got a Clue.

@Ryan-sn7fq

Apparently the expected time in years for the universe to generate a new Big Bang is 10^10^10^16

@n-v5m

Maybe open up with "some of us think that we can theorize a multiverse paradigm instead of implying it's existence

@Anonamouse7

@smokenfly514 I think there would be scaling - An atom in this universe would be larger than an atom in the other universe, but the two will never meet. Krauss also points out that if the universe within our appear to be expanding from within it, to us in our universe it would appear to be shrinking away. I think it's important to caution against thinking the scale of our universe is the only scale that exists.

@elementsofphysicalreality

Imagine you went into a black hole and it was a wormhole further away from you and you looked in a telescope at Earth you would be seeing the past because the light hasnt yet gotten to you.

@quantumofspace1367

The physical quantum vacuum must be continuous and at the same time discrete. The physical vacuum must be from chaos, in which the fractals of quantum wave oscillations are scattered. The physical vacuum must be rolled up and at the same time unfolded. For this physical vacuum, it is necessary to build a physical model from a quantum of membranes assembled into a “sphere” like “rose” buds.

@EGarrett01

At 1:21 he says "Those regions are literally moving away from us faster than the speed of light."

@fightfannerd2078

Can we create our own universe?

@Anonamouse7

@fivethirty 'if i was in a black hole I could estimate about how long i was inside even without a clock or watch!'
This statement just cements my claim that you don't understand relativity. To save yourself from further embarrassment I suggest you study relativity then admit you are wrong or at least drop the subject.

Proof again Chad? How many times do I have to remind you that proof only exists in Maths?

@Anonamouse7

Not necessarily. The total mass may be non-zero provided that there is an equal amount of  'negative' potential energy, in the form of gravity.

@Anonamouse7

@fivethirty ‘and your entirely wrong about the time issue.someone would in fact know they were in the black hole for a period of time’
No, they’d know that they were in a black hole for a period of time according to their clocks, but their clocks would slow to a stop. They wouldn’t notice this. You wouldn’t be able to ‘define’ the time period they spent there because no information can escape from beyond the event horizon.

@buttcrakzach

Yeah, it's at the beginning.

@Anonamouse7

@fivethirty ‘why are u changing the subject mrs fings??’
You said that my claim that the physics is probably above you was baseless, I showed otherwise.
‘stay focused and prove to me QF can create an entire Universe!’
Proof only exists in maths.

@Anonamouse7

@fivethirty Baseless? Not at all, you said that as an observer in a black hole you'd still see time continuing, this is not true. You also said that you'd be able to tell how long you'd been there, again, this is untrue, you'd only see what *your* clocks are telling you, and you wouldn't be able to 'define' the time period you were in their because no information can escape from a black hole.
Looks like I'm still gonna go with Krauss, champ. 
Proof is for maths, Chad.

@TheAdventurerFinn

Why would the universe within our universe look like it is shrinking into a black hole?

@diesel5355

what is a universe?