Per. with English. About. C. Sazhina . Einstein wrote that the most incomprehensible thing in the universe is that it is comprehensible. In other words, there is no room for unpredictable . in the world. But was he right? Is it possible to combine quantum field theory and general relativity, The most successful theories of physics , The Theory of Quantum Gravity , or the theory of everything? Is it possible to correlate quantum reality and unlimited space? This is what the discussion of the two leading theoretical physicists of the planet is devoted to : positivist Stephen Hawking and realist Roger Penrose. The first is sure that GTR is not able to describe the moment of formation of the Universe only a new unified theory, accepting the condition of no boundaries, will be able to explain the observational data. The second, like Albert Einstein, questions the unconditionality of quantum theory and is sure that the universe will expand forever, and this can be explained by the geometry of light cones, compression and distortion of the fabric of space-time and his own twistor theory. Arguments and counterarguments - in the usual language of formulas and strict reasoning for scientists - the authors presented in the format of lectures that were originally delivered at the Isaac Newton Institute of Mathematical Sciences (Cambridge) Translated from 13th Edition . Postword edited by authors in 2010.