Why doesn't the black hole swallow the whole universe? This may be the answer!

Cosmic black holes can swallow everything, including light. But why does it keep expanding, then swallow this whole universe?

is a mysterious and extremely scary concept in the universe. By definition, it is a mass of compressed matter, which makes the surrounding gravitational field extremely large. It was so big that it was enough to suck everything, even the light could not escape.

But with such a tremendous attraction, why does our universe still exist? Why does a black hole constantly bloom, and then simply swallow this whole universe? If you wonder because this question is reassuring, a leading physics expert now offers the answer.

Black holes "expand" inside, rather than radiating outward like we imagine.

The person behind this answer is none other than Leonard Susskind , a leading physics expert from Stanford University and the father of string theory (string theory). He mentioned it in recent research, and the reason given was really unexpected.

Accordingly, a black hole will grow by increasing the complexity within it. In other words, black holes "expand" inside, rather than radiating outward like we imagine.

Be aware that Susskind's research has not been published, nor has it been verified by the scientific council. At the same time, this is a kind of research that is all based solely on theory. However, Susskind's idea is getting a lot of attention, and let's see what the reason is.

The growth of a black hole

As stated, black holes are such a dense mass of matter that can bend space, absorb light. The theoretical foundation of the existence of black holes was introduced by Einstein in 1915. And since then, many objects that are suitable for black holes have been found, most of them in the middle. heart of the galaxy.

A black hole is such a dense mass of matter that it can bend space.

Imagine the universe as a rubber cloth. A heavy object placed on that cloth will make it sink, bend. That is how heavy objects in the universe bend space-time.

But basically, every object will expand out when we add materials, not inwardly as Susskind puts it. In this case, the rubber sheet is no longer useful in illustration.

In order to understand this story, we must come to another field called "quantum physics." Basically, physics and quantum physics are not always identical. Micro matter will have no meaning if analyzed according to Relativity. Similarly, a macroscopic object like a black hole will also crush all the laws of quantum physics.

This means that we lack critical data, a piece that allows us to analyze the Presentation at the mass range of a molecule. One solution to this story is the Ads / CFT theory (also known as AdS / CFT duality, AdS = anti de Sitter space, CFT = conformal field theory - conformed field theory) by Juan Maldacena in 1997. .

Adding more fuel, its "inside" is expanding, not outside.

Ads / CFT is an interconnected approach between relativity and quantum mechanics, which is likened to "string theory in 4-dimensional space". Based on this theory Susskind suggested that the quantum complexity of a black hole is expressed through its volume. Just like a hard drive, you stuff more data just to see that data block grows "inside" the hard drive.

In the case of black holes too, the more fuel is added, the more "inside" becomes, not the outside. But even when adding energy, its inner volume is the same.

According to Susskind, his ideas sounded contrary to common sense. However, common sense can be built on mistakes, and black holes are not really a normal space, so it is not possible to expect much in the common sense here.

The study was published at arXiv.org.