Definition of "theory of everything" [theory of everything]

• A theory, not yet in existence, that would unite all fundamental physical phenomena into a single framework (noun)

Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License

• "In the final sentences of A Brief History of Time, referring to a hoped-for time when an eloquent and unified theory of everything is developed, Stephen Hawking not generally given to metaphysical musings says, Then we shall all, philosophers, scientists, and just ordinary people, be able to take part in the discussion of the question of why it is that we and the universe exist."