"It's impossible that Edward de Vere wrote Shakespeare's plays."
I'm not sure where you get your "information". The only serious argument that has ever been proposed againt de Vere's authorship is the conventional dating of some of the plays ( especially "the Tempest" ) as having been written after de Vere's death. Among the eminent Shakespearean actors who believed that de Vere was the author of the plays were Orson Welles, John Gielgud, Leslie Howard, and Derek Jacobi. Do you consider them all fools in their own area of professional competence? Ralph Waldo Emerson, Walt Whitman, Mark Twain and Henry James were all convinced that the Stratford man could not be the author, but lived before the de Vere hypothesis was proposed. "Hamlet" has striking autobiographical references to de Vere's life, and in particular the character of Polonius is a thinly veiled caricature of de Vere's father-in-law, William Cecil, Lord Burghley, who was Prime Minister to Queen Elizabeth. Since conclusive evidence has never been found ( a manuscript would be most helpful ), the authorship of the plays will never be certain.
Well, maybe you should read a little bit more. I'd like to discuss it more with you, but you are coming off as a bit onboxious. You apparently haven't read about many of the issues surrounding authorship, so when confronted with them, you don't even bother to address them, but refer to "your 'information.'" Do you see how that could be construed as obnoxious? Thank you, I have studied Shakespeare for years, and it was my emphasis in college, I think I have more than a passing familiarity with it.