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The black hole information paradox results from the combination of quantum mechanics and general relativity.
In 1975, Stephen Hawking and Jacob Bekenstein showed that black holes should slowly radiate away energy, which poses a problem.
From the no hair theorem one would expect that the Hawking radiation be completely independent of the material entering the black hole.
However if the material entering the black hole were a pure quantum state,
the transformation of that state into the mixed state of Hawking radiation would destroy information about the original quantum state.
This violates the rules of quantum mechanics.
In 1997 John Preskill bet Hawking and Kip Thorne that information was lost in black holes.
In July 2004 Stephen Hawking announced a theory that quantum perturbations of the event horizon could allow information to escape from a black hole, which would resolve the information paradox.
However, as of 2004 the full details of the theory have yet to be published, so most peers are reserving judgement before accepting the result.
When announcing his result Hawking also conceded the 1997 bet,
paying Preskill with a baseball encyclopedia (ISBN 189496327X) 'from which information can be retrieved at will'.
The homogeneity of space and the position independence of the laws of physics is a fundamental assumption of all physics science since Newton. The information paradox of black holes is, for some anti-scientists philosophers, the proof that space is not homogeneous and that the laws of physics are actually position dependant, as long as, according to the paradox, information seems to vanish or (alternatively) stored to unconventional material (or non-material) objects. Apart from the black hole information paradox, some experiments came also close to the philosophy of the position dependancy of the laws of physics. Some universal constants used in well known equations have been found to change their values (increase or decrease) when measured in small fragments of time or when time passing[[1] (http://www.ast.cam.ac.uk/~mim/res.html)]. A group of pioneer scientists, leaded by John K. Webb (http://www.phys.unsw.edu.au/STAFF/ACADEMIC/webb.html), continues the experiments in this revolutionary field.
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