But, as someone mentioned in another comment, the fact that we can detect a 1 m objects doesn't mean that we can detect all of them, far from that. Same for lar

But, as someone mentioned in another comment, the fact that we can detect a 1 m objects doesn't mean that we can detect all of them, far from that. Same for larger ones, we just have more chances of detecting those than 1 m-sized ones.