The future of science

Friedrich Nietzsche

With the loss of the impetus of Christianity, cyclical conceptions of history have resurfaced in the West. Let us see how Nietzsche expresses this in Thus Spoke Zarathustra (Part III, 2.2), at the same time as predicting the replacement of man by the Superman, so he should have been immune to it:

And that spider creeping slowly in the moonlight, and that same moonlight, and you and I, standing before this door chatting about eternal things—must we not all have existed once before? And must we not come again and travel that path that stretches before us, that long and dreadful path? Won't we have to return eternally?

Twentieth-century atheist cosmologists often expressed a preference for a cyclic cosmology, which in their view would make God unnecessary to explain the existence of the universe. Although some of those theories (steady-state cosmology and the alternation of the Big Bang and the Big Crunch) are no longer in vogue, thanks to the data we now have about the origin and future of the universe, new theories continually emerge to replace them.

Evolution and progress

Friedrich Nietzsche

In the late nineteenth century, many biologists and thinkers, atheists or agnostics, relied on Darwin's theories to build philosophical schools that combined the newly discovered evolution with the eighteenth-century idea of ​​progress, to assert that the history of life and man shows clear traces of indefinite progress, and to predict that such progress will continue indefinitely into the future.

Among the biologists who ascribed to these theories the best known are T.H. Huxley and Ernest Haeckel. The philosophers were many, each one giving rise to a school of his own, often incompatible with those of others: Karl Marx (Marxism), Herbert Spencer (social Darwinism), Auguste Comte (positivism) and Friedrich Nietzsche (nihilism) were the more influential. In their forecasts for the future of evolution, the last-mentioned was the most exalted and predicted that man would soon be succeeded and supplanted by a superior species, the superman.