  Based upon the unique and simple starting point of the continuous flow of
time a physical theory is derived through an analysis of the elementary
arithmetic composition and symmetries of this one-dimensional progression. We
describe how the explicit development of the theory leads to a prediction of
the unique and largest exceptional Lie group E8 as the full `symmetry of time',
and hence as the unification group for the physical theory. This proposal
results from the identification of a series of esoteric properties of the
Standard Model of particle physics from a series of intermediate augmentations
in the `multi-dimensional form of time'. These physical properties derive from
the breaking of the full symmetry of time through the necessary interposition
of an external 4-dimensional spacetime arena, itself constructed from a
4-dimensional form of time, as the background to all observations. The basic
conceptual picture is presented together with reviews of a number of references
regarding E8 structures which may provide a significant guide in pursuing the
goal of converging upon a complete unified theory.
