Hypothesis 6

In Matty's Paradigm we believe that the universe is enclosed in a crystalline sphere called the firmament, so it can't be expanding. Obviously there's some other explanation for the apparent redshift of stellar objects.

Newton’s Switcheroo

How massive is the sun based if it's orbiting the Earth (of known mass) at a known distance and orbital period? It's equally valid to calculate the mass of the sun in a Geocentrospheric paradigm.