As bacteria are to viruses, so we humans are to what we term "the universe." We are and will forever be no more able to see "the whole picture" than a virus the bacterial world or for that matter a bacterium the viral world. For all we know, there are universes in the components of the most minutet items of matter–infinitely smaller than Blake’s "grain of sand." And while our telescopes and the like are able to perceive the limits of our greater universe, very likely there is a larger scheme of things and a larger yet and so on, which we may end up hypothesizing about but never be able to perceive directly. Yes, we humans, who are infinitely smaller than the...