This is the last piece of this important book. NASA has not given us any more conforming to their general prohibition of releasing controversial material. In fact. I am sure the author had much better material available to review, but could not get any of it released. Thus he has taken what is available to the public and has at least pointed at the location of the objects.
The bottom line is that the whole Solar system is riddled with hard evidence of intelligent intervention. We now understand that those folks are operating devices in space at a scale that is unexpectedly large, but also highly identifiable. This makes damage identification much easier to identify. We now know that miles of this and that can be artificial.
It is also plausible that structures on Earth may also be similarly produced. We just have not had that tool in our kitbag.
The other take home is the existence of an inter stellar network of Newtonian craft scaled to house even billions are moving between the stars and recharging at the Gas Giants before altering their course and moving on without losing speed. From this we can infer that the stellar population is in the order of trillions of such folk.
We also have a new way to protect our population through interstellar distribution..