Steve Cook, in a Valve Crooked Timber comment thread on the latest crackpot Shakespeare authorship ideas:

I’m fully aware of some of the peculiarities of early modern authorship, and I’m certainly willing to accept the ideas that Shakespeare stole rather quite a lot of his drama and that many of his plays were more collaborative than most people make them out to be. Indeed, given the way that seventeenth century drama worked and given the publication history of the First Folio, it seems quite possible that that’s the case. What I’m not willing to do is accept on faith that, say, Cyrus Vance wrote Raiders of the Lost Ark and didn’t fess up to it because it was seen as unbecoming for a Secretary of State to write about a two-fisted archaeologist. George Lucas spends all of his time in Northern California and attested work of the Skywalkerian is really bad, whereas Vance is a globetrotter who fought in World War II.