The Grand Design is a popular-science book written by physicists Stephen Hawking and Leonard Mlodinow. The book point out that a Unified Field Theory may not exist. Albert Einstein and other physicists had proposed such a theory based on an early model of the universe containing three-dimensions and time. Since then, the model of the universe has changed significantly. It is now believed that the universe has 10, or even 11 dimensions..
"The Grand Design" examines the history of scientific knowledge about the universe. It starts with the Ionian Greeks, who claimed that nature works by laws, and not by the will of the gods. It later presents the work of Nicolaus Copernicus, who advocated the concept that the Earth is not located in the center of the universe.
Stephen Hawking describe the theory of quantum mechanics using, as an example, the probable movement of an electron around a room. The presentation has been described as easy to understand by some reviewers, but also as sometimes "impenetrable," by others. The Book concludes with the statement that only some universes of the multiple universes/multiverse support life forms.
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