The basic point is an exercise in at least one older freshman text (Kittel & Kroemer?) but at least this paper does go on beyond and finds some strings (eg "I c

The basic point is an exercise in at least one older freshman text (Kittel & Kroemer?) but at least this paper does go on beyond and finds some strings (eg "I chimp, therefore I am") that are likely to be typed before the heat death of the universe, if not before extinction of chimpanzees.