On spacetime signature

Abstract: Discussed is the signature of Spacetime of the universe according to the modus of Special Relativity resp. General Relativity. This signature can be derived from a single polynomial equation, which, with zero-solutions of coordinate axes, causes the metric tensor-components of a tangential spacetime TM to the whole manifold (“Minkowski-spacetime“) and its counterpart, the “Anti-Minkowski-metric“ (ATM) with constant, negative metric tensorcomponents. Also the question comes clear, why the answer to the ontological meaning and sense of the universe is 42.