Four hours to go. Story still not finished; ending still completely inexplicable. Am doing curious thing of keeping two versions live onscreen, cutting one and lengthening the other, chopping and changing between as I get stuck or inspired or stir-crazy. I really need to be doing the same hotswap with my glasses, I find: I need one pair to read the MS copy I scribbled over yesterday, another to read the screen. What I really need of course is varifocals, which over here we call progressive lenses; but every time I think about those I come over all conservative and oh-they're-terribly-expensive-and-what-if-I-don't-like-them?