Suppose there really were a space containing another group of us, sharing our lives, deaths, and cycles of reincarnation. They would have powers of control, yet no wars and no laws; the ruler of that world alone would decide what was right or wrong. From birth, everyone would receive free medical care, free education, and free employment, while everything, including humanity itself, would belong to the ruler as personal property. That world would slowly shrink over time, until, countless years later, it vanished without a trace...