Sam was a man. Not a special man, he passed everywhere pretty much unnoticed. The probability he was outside equalled the chances he was inside. He was everywhere and nowhere. And thus he made his living. He could pass through locked gates and stout walls, ferreting-out secrets, spying on clandestine meetings.
One day a woman noticed him. Or rather, the exquisite workmanship of the bracelet he was fingering. The observation collapsed his wave function, and he was in full view. At that moment Sam opted for the many-world hypothesis and slipped sideways, at right angles to reality.
Note on physics: the Copenhagen Interpretation of quantum physics holds that, until the act of measurement, the location of a sub-atomic particle can only be described by the device of a wave function which describes the probability that it is in a particular place. The alternative many worlds interpretation says that the wave function is real and that all possible positions exist across a multiplicity of worlds.
Fancy sharpening your skill with writing exercises? The Scrivener’s Forge offers a new exercise every month to hone one aspect of your craft. Take a look at this month’s exercise on plot.