M-theory is a theoretical framework in physics that attempts to unify all consistent versions of string theory. It is sometimes referred to as "membrane theory" because it posits that the fundamental building blocks of the universe are not particles, but rather one-dimensional objects called strings and two-dimensional objects called membranes or branes.
M-theory is an extension of the previous theories such as supergravity and string theory. It proposes that the universe has eleven dimensions, seven of which are compactified or curled up in such a way that they are not directly observable, leaving four dimensions that we experience in our everyday lives.
The theory is still in the development phase, and many of its predictions have not been tested experimentally.
Status:: #wiki/notes/mature
Plantations:: Quantum Physics
References:: Parallel Worlds, Brief Answers to the Big Questions