well, it unfortunately and definitely might be useful these days. but wait, what the heck we're doing? We are building a robot to clean the beach? but I guess people with money should better spend them to change human behaviour and maybe to add some additional bins. so, we're fighting with consequences of human misbehaviour. But as I've already said these robots are definitely might be useful these days. And I see it can also help to drag boats (which is great). useful hunt, thanks for sharing )