I was sitting on the porch, watching the birds fly away. They were so graceful and free, soaring through the air with ease. I wondered where they were going, what they were thinking, how they felt. I wished I could join them, to escape this boring and mundane life. But then I noticed something strange. There were no trails of the wings in the sky. No feathers, no dust, no signs of their passage. It was as if they had never been there at all. How could that be? Were they ghosts? Were they holo...