Every story is a thought experiment—like the best episodes of Twilight Zone. I was completely absorbed. I still talk about stories in this collection. "The Great Silence," the story from the perspective of a (critically endangered) Puerto Rican parrot, left me choked up. "Omphalos," a pseudo-epistolary story from a timeline where creationism is real and science and religion are closely intertwined. I'm still telling people about those about 4 months after reading them.