Thanks for the explanation. "radar won't see anything stopped on the road, because it's filtering out a huge number of returns from the road" what does that m

Thanks for the explanation. "radar won't see anything stopped on the road, because it's filtering out a huge number of returns from the road" what does that mean? sorry i am still confused. Isn't the whole point of radar to detect objects around you? It shouldn't matter if the object is in the road ahead, or on the side of the road, right? Because they are all obstacles that the car should avoid, no? Like, a stopped car in front of you, vs a tree next to you on the side of the road, are both things the software should avoid, and NOT filter out, right?