Visualize an automobile driving in the evening. The headlights only go 100 or two hundred feet forward, and you may make it every one of the way from California to Ny driving in the darkish, because all You need to see is the next two hundred feet.???? ???? ??? ?? ????? ?????? ?????? ???? ????? ????? ????:?????? ?? ????? ?????? ??? ?????? ?????? ??