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The multiverse theory may be dressed up in scientific language, but in essence, it requires the same leap of faith. — Paul Davies, "A Brief History of the Multiverse", The New York Times George Ellis , writing in August 2011, provided a criticism of the multiverse, and pointed out that it is not a traditional scientific theory.
By the end of the book, Tegmark has hypothesized four different levels of multiverse. According to Andrew Liddle, reviewing the book for Nature: [4] The culmination that Tegmark seeks to lead us to is the "Level IV multiverse". This level contends that the Universe is not just well described by mathematics, but, in fact, is mathematics.
The quantum-mechanical "Schrödinger's cat" paradox according to the many-worlds interpretation.In this interpretation, every quantum event is a branch point; the cat is both alive and dead, even before the box is opened, but the "alive" and "dead" cats are in different branches of the multiverse, both of which are equally real, but which do not interact with each other.
The landscape multiverse states that by combining inflationary cosmology and string theory, the many different shapes for string theory's extra dimensions give rise to many different bubble universes. The quantum multiverse creates a new universe when a diversion in events occurs, as in the many-worlds interpretation of quantum mechanics.
M-theory is a theory in physics that unifies all consistent versions of superstring theory. Edward Witten first conjectured the existence of such a theory at a string theory conference at the University of Southern California in 1995. Witten's announcement initiated a flurry of research activity known as the second superstring revolution. Prior ...
Part I (Chapters 1–4) covers the Big Bang, the early development of the Universe, and how these topics relate to the Eternal Inflation Multiverse (Level II in the Tegmark hierarchy of Multiverses). Part II (Chapters 5–9) covers M-Theory and the "Many-Worlds interpretation" of Quantum Mechanics (Level III Multiverse). It also discusses how ...
The Grand Design is a popular-science book written by physicists Stephen Hawking and Leonard Mlodinow and published by Bantam Books in 2010. The book examines the history of scientific knowledge about the universe and explains eleven-dimensional M-theory.
In physics and cosmology, the mathematical universe hypothesis (MUH), also known as the ultimate ensemble theory, is a speculative "theory of everything" (TOE) proposed by cosmologist Max Tegmark. [ 1 ] [ 2 ] According to the hypothesis, the universe is a mathematical object in and of itself.