Reading into this book, I am struck as to where is the required analysis and scientific understanding one would need to have a balance perspective. I was going to introduce Kepler's laws but I try to dissect exactly what is going on. The academic process that would have prodded this in the direction of a deeper explanation has been suspended. I am also cynical about the reality of academic review had it actually happened and think on balance it is likely to have sucked the life blood out of this book. MP4 recording     MP3 recording -- -- Your browser does not support the audio element.