NEW DISCOVERY by ROBERT EDWARD GRANT (Today, 8-27-21): I've always wondered why Leonardo placed the Vitruvian Man's Two Middle Fingers in their precise location pointing to the intersection of the Pi = π (area) circle and the Euler's Number = e (2.718281828…)(area) square.
Today, I finally realized why….the precise location informs the precise upper corners of the perfect Squaring (area = π) of the Circle (through the exact location of the inherent diagonal lines of said area π Square. This is now yet another method to achieve the exact squaring of a circle with NO Measurements and using ONLY a Compass and Straight Edge.
This is the fourth construction method decrypted to achieve this previously believed IMPOSSIBLE task.