A doppel is a technology in which input stimuli are applied to an isolated amount of state-mass that then produces an output based on the values of the inputs, resulting in a calculation.

The given values of the calculation are not limited to strictly binary operations, as the values are created by subtle motor stimulus, and can vary by the position of the actuator and its speed of motion.

Individual doppels can be connected together and may then be prompted with a generic value that results in one doppel copying its partner's value.

Known Issues

A somewhat uncommon error suffered by doppel machines is known as an ideation cascade, in which a shock to the system disturbs otherwise isolated doppels into a hyperaware state, causing mass copying across them.

The name "ideation cascade" refers to the tendency for the repeatedly copied values to undergo mutations over failed reproductions, resulting in the potential for the values to have diverged drastically from the original source by the time the cascade is ceased.

While the implications are not yet understood, hardware failures resulting from or following ideation cascade events are strongly correlated with increased sightings of Mimics in the immediate vicinity of doppel machines.