Unfortunately there isn't much holding all this together. He had a good thesis, that the Enlightenment ideal of rationality is under attack. However he spends most of the book just ranting at various individuals and groups he can't stand rather than making a reasoned argument. So what could have been a rallying point turns out to be a list of things this one guy doesn't like. I'm not sure how the dot-com mania fits in, for example. It was dumb and silly, but just the way businesspeople always are.
Three stars out of five. Pick it up used for five bucks, or check it out of the library, for a few laughs. Not worth $25.