Science

Onsager principle on reciprocal relation

That's thermodynamics. Another weird connection they have to explain somehow.

The rest you sent is basic explanations they could have lifted from Wikipedia, plus two equations where they shoehorn the Plank units into an expression of G using ≈. I'd give them credit for balancing the units like good engineers, at least, but this looks a lot like the equation for Hawking radiation temperature, so that may or may not be original work.