Your initial point is true about just about anyone who wrote more than a certain amount of time ago. It's true of Jonson and Spenser and Marlowe, too. The latte

Your initial point is true about just about anyone who wrote more than a certain amount of time ago. It's true of Jonson and Spenser and Marlowe, too. The latter point is just false -- textual analysis is entirely consistent with the historical evidence (such as the writings of his contemporaries) that William Shakespeare of Stratford-upon-Avon wrote the works of Shakespeare.