I hear this a lot including from people I respect. However, I don't need LIDAR maps to drive, so why should a self-driving car need one? I get that having knowl

I hear this a lot including from people I respect. However, I don't need LIDAR maps to drive, so why should a self-driving car need one? I get that having knowledge of the road available to the car could make computation easier, but it can't be relied upon as the environment might have changed between capture and driving.