It is suggested that the chapter about light speed (y5) is changed into the whole book "revolution and reform" which is roughly of similar length. The subjects are rather divergent, and the book R and R fits nicely; the last chapter (DAVID-239 Constitution) can be omitted since it is already in the larger book. (The reason the light-speed chapter was originally part of it, is because the whole book was meant to store and safe the data somewhere.)