I am an avid listener. I listen between 75-100 hours per month on my iPhone: 60% fiction to 40% non-fiction.
In the demographic Cliff, Dent make a reasoned, well supported argument for his predictions. The first third of the book is very slow because he spends a great deal of time convincing you of his solid record in past predictions -- of course they have worked out well or why would he write another book?
That sarcasm aside, he makes a very convincing argument and it dovetails with other books like "The Next 100 years" and Freakonomics. I think this is a must read -- think it over, his argument does make common sense.
An interesting book that is enlivened by stories of various traders and insults targeted at journalists, economists, MBAs, and philistines in general. He comes off as kind of arrogant and condesending but since I'm too thick to understand that he's talking about me, I find the irreverent tone rather enjoyable. He does a great job on a difficult topic.