This book makes you think. The way it is written is interesting by itself, with news clips that sets you in the current time the chapter is written at. The book spans a long time period, and have many intriguing technology ideas, many based on existing technologies.
Te books starts at 1925, and goes a couple of hundred years into the future. Though the thread that holds the book together is longevity, the human factor, family and love relationships and their connection to new situations that arise from the longevity quest, even financial issue relating to the situation, all play a role in an ever developing story line.
The book is good reading, but more than anything else I find it fascinating in the ideas about technology as related to longevity and immortality the real bonus.