Do you ever said that you would come back a few hours back to avoid making a mistake ??? This novel describes the adventures of a young mathematician who helped by the fantastic discoveries of a scientist disabled, began exploration time. He first explores the immediate future, then the very distant future of humanity. How Man Does he live in a century? and 100,000 in the year? He then launches into the exploration of the past and discovers that there are interactions between eras ... -Absolutely Passionnant- This novel is an incredible power. It raises critical issues and even philosophical. A Must Read