Book excerpt: This work documents the surprising logarithmic pacing of human evolution. Starting at 8 million years ago with the first hominin, we keep halving units, revealing a series of distinct leaps in symbolic capacity. Ten major nodes include the first bipedal humans, the making of stone tools, ornaments, and figurines, the ritual burial of the dead, and drawing images in deep caves. We are given considerable cause to wonder about the beauty and meaning of symbols. Read this book if you want to become open to the deepest layers of symbolizing found in our humanity.