Who Built the Moon?

Who Built the Moon? is a book by Christopher Knight and Alan Butler. It is a collection of incredible coincidental facts about the Moon and other astronomical and planetary proportions, which leads the authors to believe that at some point in the future humanity travelled back in time  4.6 billion years to artificially construct the Moon. This is apparently known to the freemasons.

Crank "insights" seldom come alone; the same authors also wrote books on the New World Order because there are statues in Washington, D.C.

Arguments
The authors propose a variety of tenuous coincidences, whose supposed improbability demonstrates that the moon could not possibly have come about by chance. The moon's size is unusual, both because it is relatively much larger than the moons of other planets and because it appears the same size as our sun which supposedly proves the moon is a "deliberately created scale model of the Sun".

It is generally accepted, based on geological analysis of moonrock, that the moon was generated from the same material as the Earth, and the conventional interpretation is that it was separated due to a strike, even though there are a few questions in the theory yet to be answered conclusively. But because not every detail of the giant-impact hypothesis is entirely certain, the authors suggest a far less plausible theory with far more unanswered questions: the moon was deliberately constructed by taking material from the Earth and sticking it in space. Why? No idea. By whom? Um...

Their argument for the moon as a created object bizarrely mirrors the argument from design often used by creationists: there is no way our moon could just appear like this. But it also draws heavily on numerology and numerical coincidence, some of which make no sense: "The Earth is 3.66 times bigger than the Moon and the Earth year (thanks to the presence of the Moon) takes 366 days" — the length of a day has actually changed significantly, so this may be true now, but it wasn't in the past and won't be in the future.