General relativity can be amended by adding a spatial dimension equivalent to the other three. This would account for the illusion of dark energy. It may be a stepping stone towards the theory of everything where space is unified rather than general relativity and quantum mechanics.

There is a spatial dimension missing from the Einstein equations. This dimension is as real as the other three spatial dimensions and can be visualized. Universe expansion in this dimension explains the illusion of dark energy. Math validation would show how the dimension expands with respect to decreasing mass density is equivalent to dark energy. When the Universe began, all matter and energy was confined to a tightly bound volume resulting in near infinite spacetime curvature. As the universe expanded mass density and curvature decreased. This resulted in Universe expansion in two directions – parallel and normal to the path of light. This is demonstrated by a tetherball: the curved path of light is represented by the ball moving around the pole. Movement away from the pole represents Universe expansion normal to the path of light. The rope keeps the ball from flying off from the pole. There is something yet unknown that keeps matter and energy from flying into the added dimension. Some matter and energy leaks into and out of the added dimension resulting in far reaching implications. One possibility is the unification of the space used for quantum mechanics and general relativity where a set of algorithms equally applies to both. This might be a steppingstone to the theory of everything. Low hanging fruit from such would be more efficient fusion reactors and superconductivity. Rather and unifying QM and GR the path is unifying the definition of space. Visualization comes from imagining how the new dimension expands.