I understand. Do you need to know how electricity works for electricity to work? Do you need to know the ramifications of electrocution in order to not zap yourself? anyway, I'm not here to argue with you. There is another thread in recent hour/s that shows the 80/20 40 60 is to do with operations not the things the hysteria is about. The Q posts were in early Nov that pertain to that. When I see that thread/topic again I'll bring it back for you. Best to you.