I've been using Ubuntu for a while now, and I discovered today how to use what's called the natural scroll, which corresponds in fact to the same scroll as in a mac OS.
So in Ubuntu, unnatural scrolling is considered as scrolling two fingers to the bottom of your touchpad which moves your scroll to the bottom of the page.
While Ubuntu natural scrolling is considered as scrolling two fingers to the bottom, which scrolls your page to the top.
I understand that this natural scrolling is relevant for touchscreen, but can it be considered natural in the case of a touchpad?