[Otto doesn't respond immediately. He takes a small sip of his drink first, even as the actuator moves itself closer to Luca's face. The other three are watching him as well, though from more of a distance. At the moment, they're all docile. Perhaps even curious. Do the dream spirits inhabiting them recognize Luca on some level, perhaps?]

... It's more of a harness around my abdomen. But yes, they're attached directly to my spine. [He'd use words like "nano wires" and "neural link", but he expects they don't mean much to the average stranger in this pitiful world.] They function exactly as any other limb would.