Posthumanism asks what happens when our technologies allow humans to enhance intellectual, physical, and psychological capacities beyond what biology can give us. Think bionics on crack.
Why should the US invest in brain science? See David's opinion in the New York Times.
Read David's new article in Wired magazine: "Apocalyse? No. Six Ways the Internet Will Save Civilization"
Hear the actress Emily Blunt (Young Victoria, Devil Wears Prada) read "The Cast" from Sum. She is one of the dozens of terrific actors who read for the audio book.