When I am thickening my plots, I like to think 'What if ... What if ... ' Thus my imagination can move from the likely, which everyone can think of, to the unlikely-but-possible, my preferred plot.
Patricia HighsmithBut there were too many points at which the other self could invade the self he wanted to preserve, and there were too many forms of invasion: certain words, sounds, lights, actions his hands or feet performed, and if he did nothing at all, heard and saw nothing, the shouting of some triumphant inner voice that shocked him and cowed him.
Patricia Highsmith