Now that we understand something of our deep history, and how long it has taken to become human, we can begin to explore modern innovations—and understand more fully the implications of our ancient history and how it shapes our relationship with modernity. We are experiencing changes across the full spectrum of our experience: to our bodies, our diet, our sleep, and so much more. Many of these changes have come so fast and furious that we should not be surprised when they create damage that is difficult to undo.
