Grand United Theory (GUT)

3D Model

A Grand Unified Theory (GUT) is a physics concept aiming to merge the strong, weak, and electromagnetic forces into a single framework, suggesting they are different aspects of one force at extremely high energies, like those in the early universe.

While electroweak unification (strong/weak/EM) is confirmed, a complete GUT remains theoretical, with models like SU(5) and SO(10) proposing how these forces unify and predicting phenomena like proton decay, though experimental evidence is lacking.

GUTs are a step toward a Theory of Everything (ToE), which would also include gravity.