From this new point of view, the universe I had inhabited became an object I could perceive in its entirety. It was a hypersphere embedded in a cloud of alternative states - the sum of all possible quantum trajectories from the big bang to the decay of matter. "Reality" - history as we had known or inferred it - was only the most likely of these possible trajectories. There were countless others, real in a different sense: a vast but finite set of paths not taken, a ghostly forest of quantum alternatives, the shores of an unknown sea.

We spent a lot of time discussing cosmology first. I think that was your father's unique way of evaluating people. You can tell a lot about a person, he once said, by the way they look at the stars.

What had been released into the desert vacuum and starry oases of the galaxy was the inexorable logic of reproduction and natural selection. What followed was parasitism, predation, symbiosis, interdependency chaos, complexity, life.

To fire a bullet into the heart or brains of one's fellow man even a fellow man striving to do the same to you creates what might be called an unassimilable memory: a memory that floats on daily life the way an oil stain floats on rainwater. Stir the rain barrel, scatter the oil into countless drops, disperse it all you like, but it will not mix; and eventually the slick comes back, as loathsomely intact as it ever was.

Is there any evidence to the contrary? I don't need certainty in order to act on a well-founded suspicion.

Personally, I don't believe in anything more supernatural than what you read about in the Bible, and I only believe that one day out of seven.

These movies belonged to the twentieth and early twenty-first centuries that period of great, unsustainable, and hedonistic prosperity, driven by the burning of Earth's reserves of perishable oil, which culminated in the False Tribulation, and the wars, and the plagues, and the painful dwindling of inflated populations to more reasonable numbers.