Why is string theory beautiful?
String theory is a unique theory that can predict everything about the physical world. String theory manages to extend quantum field theory in a consistent way, something which is very non-trivial and the way this happens can be described as beautiful.
What does the M stand for in M-theory?
M-theory is a theory in physics that unifies all consistent versions of superstring theory. According to Witten, M should stand for “magic”, “mystery” or “membrane” according to taste, and the true meaning of the title should be decided when a more fundamental formulation of the theory is known.
What are the basic assumptions behind string theory?
All particles in the universe can be divided into two types: bosons and fermions. String theory predicts that a type of connection, called supersymmetry , exists between these two particle types. Under supersymmetry, a fermion must exist for every boson and vice versa. Unfortunately, experiments have not yet detected these extra particles.
Is string theory actually a scientific theory?
It may seem that, by calling it “string theory” and presenting it as a possible solution to a scientific question, we’ve already answered in the affirmative: yes , string theory is a scientific theory.
Is string theory still a viable theory?
2 Answers. A one proposition summary for this sketchy answer: String Theory is considered viable because it’s a working theory of quantum gravity and the feeling is that with further work it will became possible to relate theory with our world, that is to get predictions and experimental confirmation.
What do you think about string theory?
String theory is a theoretical framework that attempts to reconcile gravity and quantum mechanics. In string theory, the point-like particles of particle physics are replaced by one-dimensional objects called strings. String theory describes how strings propagate through space and interact with each other.