Traditional scrolling is consistent with the arrow keys, that is, moving your fingers down on the scroll wheel or the trackpad moves in the same direction as pr

Traditional scrolling is consistent with the arrow keys, that is, moving your fingers down on the scroll wheel or the trackpad moves in the same direction as pressing the down arrow in the keyboard. (The arrow keys traditionally move a text cursor through the document, and the scrolling happens when it hits an edge; this is why they content scrolls in the opposite direction.)