Both sides of the debate have suggested other reasons, including associations with various styles of Latin letters (namely, the /g/ in /-ing/, often written with a bottom-loop in script) and the effect of letter-height on the coastlines of words, but whether Read considered any of these is uncertain.
One of the beliefs that leads to such allegations is that Air "𐑺" is a ligature of the letters Egg "𐑧" and Roar "𐑮".