From an antinatalist perspective the progress achieved by humankind corresponds to the degree to which humankind succeeds in abolishing itself qua Nature-bound nexus of procreation and suffering. Decisive as regards the undermining of this Nature-bound nexus of procreation are the factors: basic material sustenance and methods of contraception. In the 20th century the development of technical-agricultural forces of production and that of mankind’s powers of destruction stayed more or less in equilibrium with one another. It was thus at the same time the most progressive and – by reason of certain aspects of this very progress – the most regressive century in mankind’s history. From the antinatalist perspective, however, the 20th century is decidedly to be classed as the most progressive century, since without the invention of modern methods of contraception it is to be supposed that many billions more human beings would have begun to exist.