We build models of the past and then use them spatiologically to reify and measure Time. Let us take a familiar example. Zembre, a quaint old town on the Minder River, near Sorcière, in the Valais, was being lost by degrees among new buildings. By the beginning of this century it had acquired a definitely modem look, and the preservation people decided to act. Today, after years of subtle reconstruction, a replica of the old Zembre, with its castle, its church, and its mill extrapolated onto the other side of the Minder, stands opposite the modernized town and separated from it by the length of a bridge. Now, if we replace the spatial view (as seen from a helicopter) by the chronal one (as seen by a retrospector), and the material model of old Zembre by the mental model of it in the Past (say, around 1822), the modem town and the model of the old turn out to be something else than two points in the same place at different times (in spatial perspective they
The Past, then, is a constant accumulation of images. It can be easily contemplated and listened to, tested and tasted at random, so that it ceases to mean the orderly alternation of linked events that it does in the large theoretical sense. It is now a generous chaos out of which the genius of total recall, summoned on this summer morning in 1922, can pick anything he pleases: diamonds scattered allover the parquet in 1888; a russet black-hatted beauty at a Parisian bar in 1901; a humid red rose among artificial ones in 1883; the pensive half-smile of a young English governess, in 1880, neatly reclosing her charge’s prepuce after the bedtime treat; a little girl, in 1884, licking the breakfast honey off the badly bitten nails of her spread fingers; the same, at thirty-three, confessing, rather late in the day, that she did not like flowers in vases; the awful pain striking him in the side while two children with a basket of mushrooms looked on in the merrily burning pine forest; and the startled quonk of a Belgian car, which he had overtaken and passed yesterday on a blind bend of the alpine highway. Such images tell us nothing about the texture of time into which they are woven — except, perhaps, in one matter which happens to be hard to settle. Does the coloration of a recollected object (or anything else about its visual effect) differ from date to date? Could I tell by its tint if it comes earlier or later, lower or higher, in the stratigraphy of my past? Is there any mental uranium whose dream-delta decay might be used to measure the age of a recollection? The main difficulty, I hasten to explain, consists in the experimenter not being able to use the