This essay undertakes to explain the sometimes positive and negative connection between Physics and Mathematics. From antique Greece through the Middle Ages and the Renaissance to the 20th century a parabola is drawn, describing the often controversial relationship between the two disciplines. As crown witness for the harmful influence of math without empirical feedback, the development of Einstein cosmology is presented in some detail. It shows an 800 pound gorilla (mathematics) can easily suppress a small bird (physics) if nobody cares for a fair equilibrium. The mainstream Standard Cosmological Model, or Big Bang, with inflation and accelerating expansion is the result. It has no realistic physical background and based on a false redshift explanation. An alternative redshift mechanism is conjectured.
lutz kayser