Despite Tesla's ambitious claims of its vehicles' Full Self-Driving capabilities, today's autonomous navigation technology generally tops out at Level 2. More advanced self-driving systems are in development but likely still years away from being safe and cost-effective enough for everyday use. Seoul Robotics, however, has developed a mesh network that reportedly imparts Level 5 autonomy to vehicle fleets, if only for the "last mile." The company's Level 5 Control Tower system sidesteps some technical challenges of self-driving technology by embedding sensors in the surrounding infrastructure -- traffic lights, nearby buildings, freeway overpasses, etc -- rather than on the vehicles themselves. Instead of each vehicle looking out for itself and responding autonomously to surrounding traffic, the Level 5 Control Tower uses its meshed sensor network to collect data on the overall traffic situation and automate vehicles in the area accordingly, using V2X communications and 4/5G radios.