A great book? I don't think so. To produce a mathematical argument that purports to prove a proposition is numerative sophistry. The accuracy claimed simply does not exist. When an engineer trained in mathematical techniques expresses wonder that doubling the length of the edges of a pint-sized cube produces a gallon-sized cube ones credibility starts to evaporate. The desire to elevate the ancients seems to go hand in hand with the will to lose common sense - as some of the above comments demonstrate. The two authors are at worst latter day Von Danikens or at best delusional Velikovskys.
Something is not right. This message is just to keep things from messing up down the road