My uneducated theory of dark energy. So the amount of information that can be contained in a spherical volume of space is proportional to the surface of that sphere. There is a dimensional paradox there. If we expand the sphere large enough given a space with uniform informational density there will be some r which doesn't satisfy our requirements unless that informational density is zero. But.. what if to satisfy that information law you could stretch space thus growing the surface area of the sphere considered without adding any additional content. If this were something that could happen it like all laws would be constrained by the speed of light. Therefore the maximum radius considered is constrained by the age of the universe. As the universe ages it grows to satisfy that law.