I believe it to be neither and as a counterpoint ask if it really is a problem as you frame it. Scrolling on a touch enabled device, and all Apple devices are s

I believe it to be neither and as a counterpoint ask if it really is a problem as you frame it. Scrolling on a touch enabled device, and all Apple devices are supplied touch enabled in one way or another, is performed differently. It is instinctive using OS X to scroll with 2 fingers. Obviously, this is a learned behaviour for adults that have been around computers for a while, but an intuitive one none the less. The old paradigm of scrollbar with arrows and thumb is redundant with touch input, to the point it actually gets in the way. What we have now in OS X and iOS serves more as a page location indicator that occupies the same position in the container.