1. An implantable system comprising: at least two modules implantable in living tissue, each of the at least two modules including at least one of a sensor or an actuator, a processor, and a network interface, the network interface configured to communicate with at least one other of the modules; and a power source providing a data signal and a power signal to each of the at least two modules; wherein each of the at least two modules is physically free of a power storage element.