Is Universe a Black Hole?

mikeman · 2010-02-17T22:41:00

First of all, I apologize to any properly educated physicists, in case my post is horribly naive(which it probably is). I just have an interest on physics, but not much more. I'm just laying down some thoughts and questions. So bear with me :) Anyway, I had a strange idea today, I don't remember if I had read something about it long ago, but I may have since there seems to be such a 'theory'. Basically, I was thinking, is it possible that our Universe is a huge black hole created from another 'parent' universe? It seems strange at first, but the fact is that something has to take place inside a black hole, and I find it hard to believe that black holes are just point objects and all the energy/mass just stays stationary. In my naive understanding, all the particles that are collapsing to form a black hole must have some huge velocity when they reach the center, so it's logical that they will come out 'on the other side' with that velocity. Also, could someone with some proper physics understanding, unlike me, explain in simple terms how the Universe is not a black hole? According to Big Bang, there was a tremendous amound of matter/energy in a single point, which does sound like a black hole. Furthermore, the timespace is expanding, as we know, faster than the speed of light, so, like black holes, nothing(not even light) can escape or reach the boundaries of the universe(event horizon?). Can it be expanding because the Big Bang was not a momentary event, but it's part of a continous flow of matter between the 'parent' and out universe, which means that matter keeps coming to our universe, warping spacetime more and more, causing it to 'expand'? Any opinions or links to material about this would be welcome :)

Krokhin

218

February 17, 2010 12:02 AM

Quote: Original post by taby
Krokhin, here's a much better (not hand-wavy) explanation about infall:
http://cosmology.berkeley.edu/Education/BHfaq.html#q4
I also missed the fact that your initial view was "the black hole is frozen", but in your most recent reply the view was "the black hole appears frozen". Of course, this paradigm shift is exactly what is needed to answer to your own question.

Sure,I'm familar with this explanation.But it seems me you can't to answer clear to my question: how we can interprete the time speed under horison where time-space invariant (c*t)^2-x^2-y^2-z^2 <0 -i.e. spatial-simular
relatively to our (for example,Moskow) time ?

[Edited by - Krokhin on February 17, 2010 12:02:32 AM]

taby

1,527

February 17, 2010 12:08 AM

Quote: Original post by Washu
Taking the holographic principle to extremes...

Your math seems very accurate. There is one very small (non-fatal) point to make about it however:

The number 3.379x1049 that you provide is the number of nats (natural digits, base e number system). The number of bits (binary digits, base 2 number system) is 3.379x1049 / ln(2) = 4.875x1049.

The code I used to calculate these numbers:

const double pi = 4*atan(1.0); // 3.14...const double c = 299792458; // speed of light in vacuumconst double c3 = pow(c, 3.0);const double G = 6.673e-11; // gravitational constantconst double h = 6.626068e-34; // Planck constantconst double hbar = h/(2*pi); // Dirac constantconst double lp = sqrt(hbar*G/c3); // Planck lengthconst double lp2 = lp*lp;double r = 5.3e-11; // converted from picometres to metresdouble A = 4*pi*r*r;double S = A/(4*lp2); // natsdouble n = S/log(2.0); // bits

The code isn't so much for you Washu, but for those not familiar with how to obtain the number that you provided. :)

taby

1,527

February 17, 2010 12:08 AM

Quote: Original post by Krokhin
Quote: Original post by taby
Krokhin, here's a much better (not hand-wavy) explanation about infall:
http://cosmology.berkeley.edu/Education/BHfaq.html#q4
I also missed the fact that your initial view was "the black hole is frozen", but in your most recent reply the view was "the black hole appears frozen". Of course, this paradigm shift is exactly what is needed to answer to your own question.

Sure,I'm familar with this explanation.

Then please don't waste my time by asking questions you already know the answer to. I'm going to have to assume from now on that you're being facetious whenever you attempt to converse with me, so don't be surprised when I fail to respond.

Hodgman

52,718

February 17, 2010 12:33 AM

How much is a cheeseburger?

. 22 Racing Series .

Krokhin

218

February 17, 2010 12:40 AM

Quote: Original post by taby
Quote: Original post by Krokhin
Quote: Original post by taby
Krokhin, here's a much better (not hand-wavy) explanation about infall:
http://cosmology.berkeley.edu/Education/BHfaq.html#q4
I also missed the fact that your initial view was "the black hole is frozen", but in your most recent reply the view was "the black hole appears frozen". Of course, this paradigm shift is exactly what is needed to answer to your own question.

Sure,I'm familar with this explanation.

Then please don't waste my time by asking questions you already know the answer to. I'm going to have to assume from now on that you're being facetious whenever you attempt to converse with me, so don't be surprised when I fail to respond.

It seems me you can't answer clear to my question: how we can interprete the time speed under horison where time-space invariant (c*t)^2-x^2-y^2-z^2 <0 -i.e. spatial-simular relatively to our (for example,Moskow) time ?

taby

1,527

February 17, 2010 12:53 AM

Quote: Original post by Hodgman
How much is a cheeseburger?

Meow dollars.

taby

1,527

February 17, 2010 12:54 AM

Quote: Original post by Krokhin
Quote: Original post by taby
Quote: Original post by Krokhin
Quote: Original post by taby
Krokhin, here's a much better (not hand-wavy) explanation about infall:
http://cosmology.berkeley.edu/Education/BHfaq.html#q4
I also missed the fact that your initial view was "the black hole is frozen", but in your most recent reply the view was "the black hole appears frozen". Of course, this paradigm shift is exactly what is needed to answer to your own question.

Sure,I'm familar with this explanation.

Then please don't waste my time by asking questions you already know the answer to. I'm going to have to assume from now on that you're being facetious whenever you attempt to converse with me, so don't be surprised when I fail to respond.

It seems me you can't answer clear to my question: how we can interprete the time speed under horison where time-space invariant (c*t)^2-x^2-y^2-z^2 <0 -i.e. spatial-simular relatively to our (for example,Moskow) time ?

I said ask a physicist.

taby

1,527

February 17, 2010 12:57 AM

Anyway, an n-bit integer (familiar to every computer programmer) has a binary entropy of n, producing a set of 2n unique microstates, if that means anything to you. So try to think of a Schwarzschild black hole's microstates in the same way (e.g., an n-bit black hole, where n = A/(4 lp^2 ln(2)) ).

Don't believe me. Write to a physicist and ask them about the holographic principle and the black hole's quantum microstates. If the physicist is willing to lend their answer to the public forum, then post the information.

[Edited by - taby on February 17, 2010 1:57:50 AM]

Krokhin

218

February 17, 2010 03:58 AM

Quote: Original post by taby
I said ask a physicist.

Well,I'll ask this guys first[smile]
In their discussion they tought my question, slightly.

[Edited by - Krokhin on February 17, 2010 4:58:55 AM]

taby

1,527

February 17, 2010 08:42 AM

Quote: Original post by Krokhin
Quote: Original post by taby
I said ask a physicist.

Well,I'll ask this guys first[smile]
In their discussion they tought my question, slightly.

Yes, it looks like they're telling you the same thing. I'm sure that if you press them and ask them to demonstrate, they will probably also tell you 1) they don't owe you anything, 2) go learn it yourself.

Is Universe a Black Hole?

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