With just over 500 equations, the paper solves a comprehensive physical description of dark energy, dark matter, discrete gravity and unification. Solving over 30 outstanding problems in modern physics, the paper derives the physical constants from first principles, demonstrates the physical significance of Planck’s units, solves discrete versions of SR and GR, derives the equivalence principle, presents a parameter-free description of early events of the universe, discovers a new form of length contraction unrelated to Einstein’s relativity, and identifies the distinct state of our universe – 42. Forty-two is what defines our universe from any other version of the universe. It also determines the expansion rate and orbital of an atom’s ground state, thus reducing the number of stable universes as we understand them to just a few. So while Douglas Adams may have been picking numbers at random when he wrote The Hitchhiker’s Guide to the Galaxy, maybe we also live in a universe that likes to poke fun.