Last night I dreamt of an invention that showed how long an addict had been sober. It was all very sci-fi - a set of embedded lights under the skin in two lines, like a landing strip, from collarbone to the bottom of the ribs. These lights glowed bright red when the addict's acting out had been recent, and as the days of sobriety racked up, the lights would gradually dim.
Once the lights extinguished altogether and remained out for a given period of time, they would begin to glow green - very soft at first, and then stronger with each passing day - to indicate the addict's progression toward a healthy life.
If only this were so.