They were a form of mutated twinning, joined at the base of the skull so that a single cephalic structure served both separate bodies. Evidently the personality George inhabited one hemisphere of the brain, made use of one eye: the right, as he recalled. And the personality Walt existed on the other side, distinct with its own idiosyncrasies, views and drives-and its own eye from which to view the outside universe.
( Philip K. Dick )
[ The Crack in Space ]
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