Definitions
from Wiktionary, Creative Commons Attribution/ShareAlike License
 n. A generalized theory of elevendimensional supergravity that attempts to unify the five superstring theories
Etymologies
Examples

In the search for answers, there is no reason to stop at Mtheory, which is not strictly speaking a theory at all but an illdefined speculation about how string theory, itself a speculation about quantum gravity, may cohere.

Quantum physics and superstring theory—and now the latest articulation of this, called Mtheory—tell us that everything in existence is composed not of points, or “dots,” of energy, but of smallerthanminuscule circular “strings” that vibrate constantly, at differing rates.

In the search for answers, there is no reason to stop at Mtheory, which is not strictly speaking a theory at all but

One prediction of Mtheory is that there are many different universes, with different values for the physical constants.

Our best bet for a theory of everything is Mtheory an extension of string theory.

But these are all topics that have been covered by other writers, and what we really want from Mr. Greene is the inside dope on string theory, the newer but related contender known as Mtheory which postulates precisely 11 dimensions, and how these ideas lead to the multiverse.

Mtheory or no Mtheory, the pieces of our universe fell into the places where they are, not because of a guiding hand and a grand design, but through mere accident.

Mtheory has eleven dimensions, ten of space and one of time.

Some reviewers have criticized The Grand Design for basing its case on the highly speculative Mtheory.

Hawking and Mlodinow apply Feynman's ideas to Mtheory, a generalized extension of string theory.
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