In the center of a black hole is a ‘gravitational singularity’, a one-dimensional point which contains a huge mass in an infinitely small space where density and gravity become infinite and space-time curves infinitely, and where laws of physics as we know them cease to operate.
According to a description in Science Alert, “In a four-dimensional universe (where the fourth dimension is time), singularity is thought to be the point of a black hole where gravity is at its most intense – the centre – and this is surrounded by the event horizon at the black hole’s edge.”
In scientific terms, a gravitational singularity (or space-time singularity) is a location where the quantities that are used to measure the gravitational field become infinite in a way that does not depend on the coordinate system. In other words, it is a point in which all physical laws are indistinguishable from one another, where space and time are no longer interrelated realities, but merge indistinguishably and cease to have any independent meaning.
Universe Today
In the words of genius cosmologist Stephen Hawking, “the classical theory, does not enable one to calculate what would come out of a singularity, because all the Laws of Physics would break down there. “
A spacetime singularity is something which we cannot comprehend because of limitations of the powers of our theories we have been able to develop so far and that is why to us, it appears that laws of physics break down in it, when in fact, it is we who are lacking the tools to investigate what’s actually going on at that point.
In ‘Einstein and Singularities’ published in Studies in History and Philosophy of Modern Physics; Volume 30, Issue 2, June 1999, Pages 185-235, John Earman and Jean Eisenstaedt argued, “Except for a few brief periods, Einstein was uninterested in analysing the nature of the spacetime singularities that appeared in solutions to his gravitational field equations for general relativity. The existence of such monstrosities reinforced his conviction that general relativity was an incomplete theory which would be superseded by a singularity-free unified field theory. Nevertheless, on a number of occasions between 1916 and the end of his life, Einstein was forced to confront singularities.”
Famous Physicist Brian Greene’s thoughts on singularity are also worth taking into account. In an interview to NBC news, he was quoted to have said, “One day we’ll truly understand what happens deep inside a black hole. I mean, the edge is cool but the middle is crazy. The middle is where the mathematics of Einstein and quantum mechanics collide, and in that collision there are fireworks and the equations just fall apart. That’s what we call a singularity, but a singularity is a euphemism for “we don’t know what the heck is going on.” And that’s the most exciting thing because people speculated that deep inside a black hole might be where time itself ends. They speculated that that might be a gateway to another universe. Or it may be a place where new laws come into play that we’ve never even thought of yet. And that’s the real wondrous puzzle of black holes.”
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