Except that is the whole primary thesis of his book, and it is based on trivially falsified premises.

(At the time ordinary people had probably no real conception of the general order of the universe, being uneducated illiterate peasants. The educated at the time mostly viewed the Earth as sperical, because of the ancient Greek philosopher/scientists, and the Earth as the center of the Pysical Universe, again because of the ancient Greek philosopher/scientists.)