“I believe our reality is a holographic simulation, and you and I are just software running within it. Our creator, or creators, who presumably had bodies like ours, made this simulated universe so they could live forever, in a fashion, because their own reality was about to be annihilated in some sort of cosmic catastrophe. Or maybe we’re someone’s seventh grade science project. The point is that we only think we are real because that’s how we were programmed.”

Excerpted from Mr. Adams’ blog. I happen to subscribe to a marginally more spiritual version of this theory.