One theory that holds promise toward producing a unified theory is M-theory. Gathering the attention of physicists like Stephen Hawking and Brian Greene, M-theory is the unification of five separate string theories, which it can combine by adding an additional 11th dimension. It's still being hashed out--but string theory has potential to successfully combine all known forces into one.
Do you think scientists will develop a unified theory/GUT/TOE within the next few decades? Do you think it will have a effect on society, or that we haven't achieved enough to really take advantage of a fundamental theory?
-----The Golden Eagle