Wouldn't that be nice? To describe concisely what “the piece” “is”? Would it prevent it from growing into any direction “it” wants? So what we need is a momentary description, a snapshot. A Rogue then is a thing that lives with you, a multi-sensory and multi-modal object, perhaps sitting on a pedestal or a table, the size somewhere in the magnitude of 40 by 40 by 40 centimetres, emitting sound and image, and taking in sensations of its surroundings, in the prototype probably through touch and light.
It’s a body with organs, their functioning and shape perhaps composed by different artists. We’re creating a structure that hopefully others can work with. This we will see. Is the structure rudimentary enough, so that it is susceptible to the investment of others?
If there are several Rogues in a space, humans could make connections between them by moving small mobile objects from one to the other.
Perhaps a Rogue grows a memory of its place, accumulating sensor data, employing learning algorithms, adopting fragments of data from other Rogues.