As science witnesses events for which there are no reference points of comparison, ancient traditions say that the timetable is intact; the events of "The Shift" are happening now. Each event carries with it a similar message, and is a by-product of something much more significant than the event itself. During key moments in human history, wisdom has been offered allowing individuals to experience rapid change without fear. This is one of those moments. You are living the completion of a cycle that began nearly 200,000 years ago, and a process of initiation that was demonstrated over 2,000 years ago.
The science in the text can be definitely improved upon though, as has been pointed out by a few reviewers with a scientific background. As a former physicist i too found that some of the science in the book is approximative. Maybe gregg's science, although better than that of most new agers, is not as good as some of the people for which science is their daily occupation. I too had some slight uncomfortablness at some of the statements within the book, from a scientific prospective. However I would not for this reason throw out the baby with the bath water. Gregg's science might not be fool proof, but his his intuition surely is. I ultimately found this book very valuable. At least it is a movement in the right direction. Science and Spirit will soon be meeting, if humanity is to progress at all. Gregg has definitely put a very positive foot forward in this endevour as well as sharing of his experience and very positive essence in this text. A very worthwhile read.