Well before we understand how brains work, we may find ourselves able to digitally copy the brain's structure and able to download the conscious mind into a computer. What are the possibilities and challenges?
Barnes and Noble selected SUM as one of the Best Books of the Year.
Want to know how neuroscience will force major changes in our criminal justice system? Read David's article The Brain on Trial in The Atlantic. Now anthologized in 2012 Best American Science and Nature Writing.

Listen to British rocker Jarvis Cocker read the story "Descent of Species" from Sum. He is one of the dozens of terrific voices who read for the audio book.