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Stephen Hawking: 'There Are no Black Holes'


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By Chris Matyszczyk January 25, 2014 2:26 PM PST
Consternation and angst reign after the famed physicist suggests there are no black holes from which light can't escape to infinity.
Wait, so my life may not have disappeared down a black hole after all?

There is a chance for it to emerge and bloom like the career of David Hasselhoff?

It's charming when a phrase enters the language and we think we all know what it means. In the case of "black hole," we think of an infinity of black nothingness that swallows everything that slips into it.

But now, in a new paper called "Information Preservation and Weather Forecasting for Black Holes," Stephen Hawking has cast the cat among the black, holey pigeons and caused a scattering of incomprehension.

His precise words were: "The absence of event horizons mean that there are no black holes -- in the sense of regimes from which light can't escape to infinity."

It seems clear. There are no forever and ever holes of blackness. There is always the chance that light might emerge.

Hawking continued, however: "There are however apparent horizons which persist for a period of time. This suggests that black holes should be redefined as metastable bound states of the gravitational field."

So there are black holes. It's just that we should redefine them a touch. So what's this apparent horizon?

Well, it's "a surface along which light rays attempting to rush away from the black hole's core will be suspended."

But if they're suspended, they will never emerge, stuck in solitary confinement like the Man in the Iron Mask. The result is surely still the same. Once something disappears into a black hole, it's done for.

At times of existential stress like these, I turn to Nature magazine for help. It suggests that, at least in theory (and, let's face it, this is all theory), black holes might at some point disappear.

However, the magazine offers a dispiriting set of words from Don Page, a physicist from the University of Alberta in Canada. It might be possible that particles could emerge from black holes, he said.

Oh, cry of joy.

However, if particles did "it would be worse than trying to reconstruct a book that you burned from its ashes."

Ah, now that's a feeling I'm familiar with.

Edit: Added abstract and full text of aforementioned Hawkin's paper

Information Preservation and Weather Forecasting for Black
Holes S. W. Hawking1 1DAMTP, University of Cambridge, UK
It has been suggested [1] that the resolution of the information paradox for evaporating black
holes is that the holes are surrounded by rewalls, bolts of outgoing radiation that would destroy
any infalling observer. Such rewalls would break the CPT invariance of quantum gravity and seem
to be ruled out on other grounds. A dierent resolution of the paradox is proposed, namely that
gravitational collapse produces apparent horizons but no event horizons behind which information is
lost. This proposal is supported by ADS-CFT and is the only resolution of the paradox compatible
with CPT. The collapse to form a black hole will in general be chaotic and the dual CFT on the
boundary of ADS will be turbulent. Thus, like weather forecasting on Earth, information will
eectively be lost, although there would be no loss of unitarity.

Full Text Paper in PDF: http://arxiv.org/pdf/1401.5761v1.pdf

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Hmm, if particles can emerge from these re-defined 'black holes', maybe one day in the far distant future black holes can be used to transport matter across far reaches of this and possibly many other galaxies.

I theorize that black holes do actually let some form of matter, escape sorry out, but also that black holes have multiple entrances & exists which are spattered around this galaxy aka "worm holes", (I think this falls some where along string theory) so if matter can get out it can get in, with the eventual possibility of being able to send ourselves through them.

I understand that I've simply skipped out all the practical sciences involved, also the laws of physics, but that's a :beerhat: & :bong: conversation for next time.


D :alien: del. :eekout:

Edited by Dodel
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Think about the space like more layers of t-shirts, a black hole means a hole in a t-shart that is connected with another hole or holes of other t-shirts. So black holes might mean a portal to another dimension. Or thing about the bacteria in a human, the host is the dimension for that bacteria, but that bacteria doesn't know that are bilions of hosts just like his. So another host would mean another dimension for that bacteria.

So maybe there are milions of dimensions around us, but we are blocked into one and black holes might be the "escape point".

That's just my thought :))

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He also says: "There are however apparent horizons which persist for a period of time. This suggests that black holes should be redefined as metastable bound states of the gravitational field."
This is, IMHO, the real paradox.

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