A review by spitzig
The Age of Spiritual Machines by Ray Kurzweil

3.0

Too utopian. For example, he assumed people would quickly get brain implants, while ignoring the prevalence of viruses and other malware on current computers. While I don't things will be as bad as Terminator, I don't think the infinite improvement of computing will be without its problems.

He also ignored social situations that will retard the advance of technology. Like monopolies killing competition. He only briefly mentioned Neo-Luddites.

The problem with futurists is that they too often assume that current trends will continue too long. That's why 1950's SF had interstellar civilizations. The currently advancing technologies were transportation-cars, interstate highways, planes.