Recall that this was the age when the monk Copernicus was denounced by the Church for theorizing that the earth rotated around the sun
I recall reading yesterday that Copernicus was so frightened he didnt publish til on his death bed, oh, and the Church tortured Galileo to death over it lol. I suppose any close (in their minds) version will do.
The speculation will always be that, speculation. There is no way to know what the mans motivations were. Who thinks of the Sistine Chapel as a 500 yr old puzzle waiting to be solved? There is no way to “solve” anything re a puzzle! The man is dead & left us his art, not a detailed treatise on why he painted thusly. I would like to just look at the beauty of it & marvel at his God given talent. Im sure the Dan Browns of the world see things differently.