No, really. Graham Greene only wrote five hundred words a day. Which sounds like nothing, until you take the long view:
“Over twenty years I have probably averaged five hundred words a day for five days a week. I can produce a novel in a year, and that allows time for revision and the correction of the typescript. I have always been very methodical, and when my quota of work is done I break off, even in the middle of a scene.”
And that produced 25 novels, two books of poetry, four autobiographies, four travel books, eight plays, 11 screenplays, four children’s books and a shitload of short stories. All off 500 words a day.
(taken from an edition of my newsletter, ORBITAL OPERATIONS, which can be subscribed to here)