RAY KURZWEIL RESPONDS TO A SERIES OF CRITICAL ESSAYS
This 2002 book was published by the Discovery Institute (best known for their support of Intelligent Design), and includes an introductory essay by futurist and "strong AI" advocate Ray Kurzweil, followed by critiques by philosopher John Searle (author of books such as 'The Mystery of Consciousness'), Michael Denton (author of 'Evolution: A Theory In Crisis' and 'Nature's Destiny: How the Laws of Biology Reveal Purpose in the Universe'), William Dembski (author of books such as 'The Design Revolution: Answering the Toughest Questions About Intelligent Design'), and biologist Thomas Ray; Kurzweil then has the "last word" in responding to each of the critical essays, and there is a closing essay by George Gilder and Jay Richards.
Kurzweil argues forcefully that "There will not be a clear distinction between human and machine as we go through the twenty-first century. First of all, we will be putting computers---neural implants---directly into our brains. We've already started down this path. We have ventral posterior nucleus, subthalmic nucleus, and ventral lateral neural implants to counteract Parkinson's Disease and tremors from other neurological disorders..." (Pg. 14) He notes that "People often talk about consciousness as if it were a clear property of an entity that can readily be identified, detected, and gauged... (But) There exists no objective test that can absolutely determine its presence" (Pg. 45)
Searle, on the other hand, asks, "If I have my old programs downloaded onto a better brain and hardware but leave my old body still alive, which one is really me? The new robot or the old pile of junk... Suppose I make a thousand or a million copies of myself. Are they all me? Who gets to vote? Who owns my house? Who is my spouse married to? Whose driver's license if it, anyhow?" (Pg. 59) He admits that one can program a computer to SAY that "I am conscious," but he argues "that has nothing to do with whether or not it really is conscious. Actual human brains cause consciousness by a series of specific neurolobiological processes in the brain. What a computer does is a simulation of these processes." (Pg. 66)
Denton suggests, "Even the less spectacular self re-organizing and self-regenerating capacities of living things... should leave the observer awestruck... It is an achievement of transcending brilliance, which goes beyond the wildest dreams of mechanism." (Pg. 85-86)
Kurzweil responds to Searle, admitting that "orderly sequential processes cannot recreate true thinking," but adds, "But that's not the only way to build machines, or computers... Machines can be massively parallel. And machines can use chaotic emergent techniques just as the brain does." (Pg. 141)
This is an absolutely fascinating dialogue, that will be of interest to anyone even remotely concerned with the AI discussion, philosophy of mind, or the psychology of consciousness.