I read the first paragraph of the paper, and decided to give my take on, well, at least the first paragraph: the rate of change of the gravitational constant, G-dot per G being about 1/10000 per year seems awful fast to me--so fast that my intuition tells me it would invalidate projections of planetary and asteroid positions into history, despite it all seeming to match up in a neat consistent package (so that we even think we know which rocks made Tycho on the moon and killed the dinosaurs).

Unless it's for example a sine wave with amplitude on the order of 1/10000, that is.

I suspect that a paper based on 75 years of historical measurements is more likely measuring the errors in the measurements than actually finding anything (it seems to me that our ability to measure things accurately has gone up significantly even in just 75 years). Though if you wait 75 years and see the same effect over THIS period with more accurate measurements, that would mean something.

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Todd (Bowie, MD, US, North America, Earth, Sol System, Vega region, Local Bubble, Orion arm, Milky Way Galaxy, Local Group, Virgo A Cluster, Virgo supercluster, the universe in which spock is clean shaven)

Quidquid latine dictum sit, altum sonatur.

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