The Digital Mind

Abstract

This book addresses the connections between computers, life, evolution, brains, and minds. Digital computers are recent and have changed our society. However, they represent just the latest way to process information, using algorithms to create order out of chaos. Before computers, the job of processing information was done by living organisms, which are nothing more than complex information processing devices, shaped by billions of years of evolution. The most advanced of these information processing devices is the human brain. Brains enable humans to process information in a way unparalleled by any other species, living or extinct, or by any existing machine. They provide humans with intelligence, consciousness and, some believe, even with a soul. Brains also enabled humans to develop science and technology to a point where it is possible to design computers with a power comparable to that of the human brain. Machine learning and artificial intelligence technologies will one day make it possible to create intelligent machines and computational biology will one day enable us to model, simulate, and understand biological systems and even complete brains, with unprecedented levels of detail. From these efforts, new minds will eventually emerge, minds that will emanate from the execution of programs running in powerful computers. These digital minds may one day rival our own, become our partners, and replace humans in many tasks. They may usher in a technological singularity, may make humans obsolete or even a threatened species. They make us super-humans or demi-gods.