Critics and "objectivity"

Fellow theatre blogger Spearbearer Down Left has a post on Pulitzer Prize winning playwright Paula Vogel (how's that for alliteration, folks?) which caught my eye, because it talks about crrrrritics.Paula Vogel has, it seems, invited theatre critics along to a day-long "boot camp", during which they'll be asked to write plays "on the spot". This is an idea that has a history: I remember some