An event is not any more intrinsically intelligible or unintelligible because of the pace at which it moves. For a man who does not believe in a miracle, a slow miracle would be just as incredible as a swift one. The Greek witch may have turned sailors to swine with a stroke of the wand. But to see a naval gentleman of our acquaintance looking a little more like a pig every day, till he ended with four trotters and a curly tail, would not be any more soothing. It might be rather more creepy and uncanny.
G.K. Chesterton, The Everlasting Man
creation, evolution