Leonard Suskind is a professor of theoretical physics at Stanford University and director of the Institute of Theoretical Physics at Stanford University. He is considered as one of the founders of string theory, which is a controversial attempt to explain physics. Use a single mathematical framework. He is the author of several popular books on cosmology. His new book, The theory Minimalist, co-authored with amateur physicist George Hrabovsky, is a primer for readers who want to learn to think like physicists.

The most important point of string theory is that it is a highly mathematical theory, and these mathematics are combined in a close and consistent way. Its basic structure includes quantum mechanics and gravity theory. That's a big hologram. Basically, since Einstein put forward general relativity, there has been no good idea about how to combine quantum mechanics with gravity. They are always entangled and obviously inconsistent. The biggest and most important function of string theory is to show that gravity and quantum mechanics can and do interact. Most importantly, it has always been interested. This is because it is deeply rooted in mathematics and is not easy to explain. Sometimes you have to say that it is buried in mathematics. Unless you add six dimensions to the world, we can't. We have to keep it. They are too small. Difficult to understand or find.

These additional dimensions can be arranged and combined in many different ways. Not in a billion, trillion or fifty billion ways, but in more ways. The way these dimensions are combined into these tiny spaces determines the behavior of particles, the way particles exist, and what the constants of nature are-such as dark energy (empty energy) or electron charge. In string theory, all these are the characteristics of these tiny dimensional combinations. Tiny dimensions are like the DNA of the universe. So think about math. The internal consistency of mathematics is different from whether it describes nature or not. We can write mathematical theories that are not real natural theories, such as geometry. Euclidean geometry. Positive curve geometry; Which is the correct space geometry? That makes no difference. There is no contradiction in mathematics. But it is another matter to say that mathematical theories are consistent and describe the real world.

If you ask why?

Think from the core structure of the human body. What is it made of? Scintillation, red blood cells, white blood cells, cells, centers, DNA, genes, etc. , can be reduced. So, after that, you will be pierced. Believe me, I'm not trying to hypnotize you. But everything in the world is simply made. Now, put all the scenes in space. These collections can also release space. This is a combination of quantum mechanics and gravity theory. The unfinished work of most famous scientists.