I won't restrain myself when given the chance to introduce Kafka into a Shakespeare discussion.
From Zadie Smith's review in the online New York Review Of Books concerning "The Tremendous World I Have Inside My Head: Franz Kafka: A Biographical Essay" by Louis Begley comes this observation.
"The whole point of Kafka is his uncommonness. Whatever Brod explains, we feel sure Kafka would leave unexplained; whichever conventional interpretation he foists on the works, the works themselves repel. We think of Shakespeare this way, too: a writer sullied by our attempts to define him. In this sense the idea of a literary genius is a gift we give ourselves, a space so wide that we can play in it forever."
I believe all the plays of Shakespeare were written by one individual, and have absolutely no reason to think that that person is not William Shakespeare. To think that one person could not attain the knowledge needed to infuse the plays denigrates thought and intelligence. To deny there is genius in the world is an attack on art itself.