“It eats through just about every traditional concept, and leaves in its wake a revolutionized world-view, with most of the old landmarks still recognizable, but transformed in fundamental ways.”
The traditional western philosophical idea that Mind (an intelligent creator or God) is required to make a mind, with God being the ultimate source of design, is turned on its head by Darwin’s “inversion of reasoning” that Design can emerge via a mindless algorithmic process that doesn’t require any pre-existing Mind.
So, Dennett sets the stage for Darwin’s dangerous idea in Part I. Part II turns to biology to look at the controversies within the discipline that have arisen to challenge Neo-Darwinism, the Modern Synthesis. He then applies Darwin’s idea on humans in Part III, arguing that the origins of human culture, language, consciousness and morality must be explained through evolutionary processes.
Much of the book (especially Parts II & III) consists of refuting the ideas and arguments of other thinkers. Although a background knowledge of the people he critiques is not necessary, familiarity with the work of Gould, Penrose, Chomsky and Nietzsche would probably provide a more fulfilling reading experience. On that note, if you’re looking for an introductory book to evolutionary theory, this is not the place to start. I’d recommend Richard Dawkins’ The Blind Watchmaker: Why the Evidence of Evolution Reveals a Universe Without Design (which itself is frequently referenced in this book), then come back to Dennett.
Some of my favourite parts included the concepts of cranes and skyhooks, and Dennett’s autonomous robot thought experiment which is programmed to protect a cryogenic chamber of your frozen body into the future. Steven Pinker’s endorsement “Essential and pleasurable for any thinking person” on the front cover is an accurate description of this challenging book. Dennett is a compelling intellectual and I’m looking forward to reading his other work.