There's certainly an element of truth there, but it's a bit of a smoke screen. The fact that there are grey areas doesn't detract from the concept that a dividi

There's certainly an element of truth there, but it's a bit of a smoke screen. The fact that there are grey areas doesn't detract from the concept that a dividing line can be devised and enforced. We do it all the time. Age of consent laws, tax brackets, and a million other particular cases all involve us saying that we're drawing a line that's arbitrary near the boundary but profoundly meaningful if one takes a step or two back from the fine details. So I see nothing wrong with saying, "Apple paying 0.005% obviously constitutes 'state aid', and we'll work out the complicated instances if we need to".