Supergravity

Supergravity:
Even a GUTS is incomplete because it would not include spacetime and therefore
gravity. It is hypothesized that a ``Theory of Everything'' (TOE) will bring together all
the fundamental forces, matter and curved spacetime under one unifying picture. For
cosmology, this will be the single force that controlled the Universe at the time of
formation. The current approach to the search for a TOE is to attempt to uncover some
fundamental symmetry, perhaps a symmetry of symmetries. There should be
predictions from a TOE, such as the existence of the Higgs particle, the origin of mass
in the Universe.
One example of a attempt to formula a TOE is supergravity, a quantum theory that
unities particle types through the use of ten dimensional spacetime (see diagram
below). Spacetime (4D construct) was successful at explaining gravity. What if the
subatomic world is also a geometric phenomenon.

Many more dimensions of time and space could lie buried at the quantum level,
outside our normal experience, only having an impact on the microscopic world of
elementary particles.
It is entirely possible that beneath the quantum domain is a world of pure chaos,
without any fixed laws or symmetries. One thing is obvious, that the more our efforts
reach into the realm of fundamental laws, the more removed from experience are the
results.