For decades pioneering inventor and theorist, Kurzweil has explored how artificial intelligence can enrich and expand human capabilities. Now, he takes this exploration to the next step: reverse-engineering the brain to understand precisely how it works, then applying that knowledge to create vastly intelligent machines. Kurzweil shows how we can vastly extend the powers of our own mind and provides a roadmap for the creation of superintelligence—humankind's most exciting next venture.