Armstrong is advertising a new book that he has been talking about for years. He previously named it "The Geometry of Time"
The title was nonsense because Time is a dimension. A dimension does not have a geometry. A geometry HAS dimensions. But what do you expect from a school dropout...
The Geometry of Time Anyway, the book might be appealing to fools, because in the book he talks about Einstein and teaches them that "You cannot measure the circumference of the earth with a straight edge ruler."
The book is about him and his panics.