Yes, overload is real, you can never eliminate crosstalk only suppress it, and degenerate cases will probably pop up as the tehcnology scales. But coming to a compromise that allows every car to generate a map of the road should easily be possible. Well, &quot;easily&quot; in the technological sense, perhaps not the political sense.<p>For military applications it&#x27;s more useful to have one radar at high range&#x2F;power than to have n radars at low range&#x2F;power, while it&#x27;s just the opposite for civilian lidar applications. So I don&#x27;t see military radar SOP as evidence that this is inherently difficult.