Seems like they are scraping the bottom of the barrel with this MotU entry. The book is roughly divided into three parts. The first is a anthropological survey of how various cultures across history view the beginnings of time. I found this pretty boring. The second part is the strongest and it is a general overview of various scientific notions of time and space. A solid piece of history of science. The last section introduces us to the kooks. There are people who think they momentarily shifted into the past and others who can sense the tragic past of a certain location. None of it is even remotely plausible but is a good groundwork for a sci-fi time travel mechanism should you want one.