In Scientific American Sept 2022 there are 4 articles about Black Holes.
"But there's a troubling exception: black holes." and: "The black hole
does not seem to preserve information. This irreversibility, first appreciated by physicist David Finkelstein in 1958, was the earliest
inkling of the black hole information paradox
Consider what happens when you throw a book in an oven. It starts to
burn and slowly the book 'disappears' and what is left over is ash.
This is also a irreversible physical proces. It is impossible, assuming
that all what happens after you burn is ash, to recreate the object i.e.
the book, which was burned.
In article <688f84fc-e19f-4db7...@googlegroups.com>,The problem is we should come to an agreement what the "information
Nicolaas Vroom <nicolaa...@pandora.be> writes:
"The black holeJonathan might know more about this topic, but I think that the
does not seem to preserve information. This irreversibility, first appreciated by physicist David Finkelstein in 1958, was the earliest inkling of the black hole information paradox
resolution of the "information paradox" is not completely clear.
However...My understanding is that all processes are irreversible. For example,
Consider what happens when you throw a book in an oven. It starts...I think that your description is irrelevant, because one could
to burn and slowly the book 'disappears' and what is left over is
ash. This is also an irreversible physical process.
IN PRINCIPLE reconstruct the book from the ashes and smoke.
Impractical? Yes? Will it ever happen? Probably not.
Something similar might be the probability that the water in a kettle onHow do you perform such an experiment?
a fire might FREEZE (instead of boil).
According to the laws of physics, it is possible, but EXTREMELY unlikely.All the laws of physics should be based on something that can be observed
Especially with thought experiments, one has to distinguish betweenScience cannot be performed only using our mind.
things which are REALLY impossible, and things which are just really difficult and/or really improbable.
[[Mod. note -- A few points:In this case the concept of information should be clearly described.
3. I also know very little about the history of the information
paradox, but I doubt that it's correct to credit Finkelstein (1958)
with being the first person to appreciate that black holes don't
not "information" in the sense of the information paradox.The same.
4. To clarify, when Phillip says that *in principle* one canConsider some plankton, consider a fish who eats the plankton, consider a cormorant who eats the fish, consider an orca who eats the cormorant,
reconstruct the book from the ashes and smoke, etc.
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