Will Shakespeare was remarkably prescient. Hundreds of years ago he described the donjohn. How could he know?

This is from  Macbeth

"Life's but a walking shadow, a poor player,
That struts and frets his hour upon the stage,
And then is heard no more. It is a tale
Told by an idiot, full of sound and fury
Signifying nothing"

See the remarkable similarity? Dost thou deny it? How canst thee not see the perfect description of donjohn T?