Well, if that's true then I suppose I could give you half a point and say it's possible. :) I know there are places in the Bible when "brother" means biological brother and others where it means spiritual brother. I wonder how one would go about identifying only his bio-brother to someone who didn't know?
"I wonder how one would go about identifying only his bio-brother to someone who didn't know?"
Well, part of the answer is that it doesn't much matter; family is family. The other part of the answer is that in small places where people spend or spent their lives within 10 miles of home, everybody knew everybody else. Like I said, this is still true to an extent in Greece in small villages. Here we are quite particular about familial relationships, much of it coming out of the Common Law and our feudal past in England. But those sorts of feelings aren't so string elsewhere. For example, I have what we here in the states would call very distant relatives in Greece, the sort that here one probably would never have heard of let alone have anything to do with, but there the family tie is quite literally as close as brothers and sisters here.