The human brain is the most complex entity that we know of and it remains far beyond our ability to comprehend. Appleyard opens his book by describing the recent developments in fMRI scanning technology to demonstrate just how little we know about how our minds emerge from our brains. Brain activity cannot be translated into thoughts, images, ideas or language -- and we still have no idea how this happens.
He then looks at our current obsession in the West with electronic gadgetry, and the false philosophy which underpins much of modern artificial intelligence. People are increasingly addicted to the short term stimulation of using this gadgetry especially the false notion that we are communicating meaningfully with large numbers of (often) anonymous people via social network sites. Yet all of this electronic wizardry and artificial intelligence misses a key point: that as sentient beings we are creative, feeling, thinking, living animals. No computer has ever been able to demonstrate properties of creative thought, and there is absolutely no sign of one appearing because we do not know how this ability is generated in our brains. In short, our brains are not highly sophisticated versions of modern computers: the fallacy of artificial intelligence is to assume that they are.
He also makes important critical comments about the mathematisation of important parts of our lives, especially finance and banking, were highly intelligent mathematicians have deceived themselves and deluded many others into thinking that their models can predict the future behaviour of complex systems. They cannot and Appleyard explains why. We are complex beings who live in a complex world -- a problem that too many influential people think can be resolved by building solutions from simple components when they cannot. Societies have always had to face multifaceted, difficult issues and we still do, but we still have to learn that to solve them we need complex, multifaceted answers using creative ideas. Computers can help us in this process but we must never forget that they are only machines and will only ever do what we programme them to do. Mistakes in the assumptions that we feed into computers will invariably lead to incorrect answers: computers are no more infallible than we are.
This is an important message which needs to be got through to many more people, especially those who have access to the levers of change. This is a well-written, clear text which makes complex ideas and their implications much easier to understand.