Cooperative intelligence and recipient design as drivers for language biases in homesign systems

In discussing the resilient properties of language, evidenced in homesign communication systems, Goldin-Meadow observes that children, faced with genuine poverty of the stimulus, appear to be bringing their own biases to language construction/acquisition. How, then, do we account for such biases? One possibility is that the cooperative intelligence that makes language possible provides a basis for recipient design which brings such biases with it. These may arise from an embodied basis of communication, thereby providing the design space for a communication system fit for purpose