We are embarked upon solving problems about physical reality. If it turns out that all this time we have merely been studying the programming of a cosmic planetarium, then that would merely mean that we have been studying a smaller portion of reality than we thought. So what? Such things have happened many times in the history of science, as our horizons have expanded beyond the earth to include the solar system, our galaxy, other galaxies, clusters of galaxies and so on, and, of course, parallel universes.
David Deutsch (1997)