In science fiction, basic doubts featured prominently in the worlds of Philip K. Dick. I knew Phil for 25 years, and he was always getting onto me, a scientist. He was a great fan of quantum uncertainty, epistemology in science, the lot.

Indeed, the history of 20th century physics was in large measure about how to avoid the infinities that crop up in particle theory and cosmology. The idea of point particles is convenient but leads to profound, puzzling troubles.

As a literature of change driven by technology, science fiction presents religion to a part of the reading public that probably seldom goes to church.

Gregory Benford Quotes