You obviously aren't trying to pay attention. It isn't plain and it isn't simple. You can either ignore it or you can actually attempt to start figuring it out. I'm not an expert but I read a lot and I've been trying to sort out these arguments for years. If you'd make an honest attempt, you'd find out that what I say is true: it isn't plain and it isn't simple.
I have one simple link for you, since you seem to enjoy links...