Journey into a Blackhole

In our vast universe, few entities captivate the human imagination as intensely as black holes. These enigmatic cosmic phenomena, shrouded in mystery and awe-inspiring in their magnitude, challenge our understanding of the universe and beckon us to embark on a journey into the unknown. Imagine a region of space where gravity reigns supreme, so unfathomably powerful that it traps even light itself, rendering it incapable of escape. This is the realm of the black hole, where the laws of physics as we know them cease to apply, and the fabric of spacetime bends and twists in ways unimaginable. So, the question arises that if we were to enter blackhole, then what will happen, and will we be able to come out?

Will we be able to come out?

The answer is yes and no both, it depends on whether the string theory is correct or not. Entering a black hole is not a difficult task you just need to find one and enter it, but exiting it is even easier you just need to wait for “millions of years” for the black hole to evaporate and all your atoms will be free. This can be proved using two already published papers. First, we were moving with the assumption that nothing can escape a black hole which was proved wrong by Professor Stephen hawking. He proved that some radiation could exit from the black hole which was then called as Hawking radiation. He proposed that due to high gravitational pull of the black hole, a particle and antiparticle pair appears. If it happens near the event horizon then one of them gets sucked in and the other escapes. Which we take as the radiation emitted from black hole. The other particle escaping it would take energy away, thus reducing the energy of the black hole which will eventually lead to complete evaporation of the black hole. 
But the second part of escaping the black hole was: will it retain information? Which, according to quantum mechanics, information can never be destroyed. However, when combined with general relativity, quantum rules say that black holes destroy information.

Scientists have proposed modifications to the classical picture of black holes that could solve the paradox, but they lack evidence to test them.

New evidence

That is changing with the new Event Horizon Telescope, which recently took the first picture of a black hole, as well as with gravitational-wave measurements of black holes colliding.

Many physicists have provided with different models with which this feat can take place. If information is destroyed in the process, then it goes against the statement that information can never be destroyed, but when hawking proved hawking radiation, it was also established that Hawking radiation, carry essentially no information about what went into the black hole. Therefore, Hawking’s calculations appear to show that quantum information that falls into a black hole is ultimately destroyed—contradicting quantum mechanics. 

The War

The paper in which he published this, led to the great war between Leonard Susskind and Gerard’t Hooft against Stephen hawking and Kip Thorne (the war was not violent). In July 2004, Stephen Hawking published a paper presenting a theory that quantum perturbations of the event horizon could allow information to escape from a black hole, which would resolve the information paradox. His argument assumes the unitarity of the AdS/CFT correspondence which implies that an AdS black hole that is dual to a thermal conformal field theory. When announcing his result, Hawking also conceded the 1997 bet, paying Preskill with a baseball encyclopedia “from which information can be retrieved at will. The solution to this problem can also be given by the holographic principle (The holographic principle is a tenet of string theories and a supposed property of quantum gravity that states that the description of a volume of space can be thought of as encoded on a lower-dimensional boundary to the region—such as a light-like boundary like a gravitational horizon.)

So, in the end we can say that as information along with matter can escape black hole so if we create a computer powerful and intelligent enough which can catch our information escaping the black hole and give it the correct form, we can truly return from a marvellous journey from inside the black hole though we may not remember it.