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In the book of world-renowned astrophysicist and member of the Royal Astronomical Society Sir Martin Rees, the fundamental forces that govern our Universe are described. The author claims that the expanding Universe can be defined by just six numbers: N,... e, l, Q, D, each of which plays a special and crucial role in its evolution, and together they define its development and potential. Two of them are related to fundamental forces; the other two determine the size and overall structure of the Universe and indicate whether it will exist forever; the remaining two describe the properties of the Universe itself. If any of them were even slightly different, there would be no stars, and life could not exist. We could emerge—and exist now—only in a Universe with the correct combination of these fundamental numbers. Therefore, realizing this provides a completely new perspective on the Universe and our place in it, as well as on the very nature of physical laws. Martin Rees has managed to describe key concepts of cosmology, which is rapidly developing and is at the forefront of science today, in an accessible manner, without using complex mathematical apparatus.