It's hard to get more optimal than "read a page of text" "press button for next page". Scroll wheels require some combination of
* Have to move it more to travel the same distance
* Have to fiddle with it to get exactly one page
* Have to track your position during the scroll
* Have to scroll more often than once per page
This (among numerous other near-universal UX transgressions) has gotten to the point that my first action on almost any internet article is to hit ⇧⌘R.
I've always read at the center of the page while scrolling. It's what I've noticed most everyone my age doing. Maybe it's generational, I've only been at this since windows ME.
I use space for page down and shift+space for page up. Scrolling means tracking where I am as I go, when I hit page down I know where to start reading, the top. It feels more like reading a book.
Maybe because he wants to go exactly one page down as easily as possible, and this is something that has generally worked for decades. It's pretty simple, really.
* Have to move it more to travel the same distance
* Have to fiddle with it to get exactly one page
* Have to track your position during the scroll
* Have to scroll more often than once per page
This (among numerous other near-universal UX transgressions) has gotten to the point that my first action on almost any internet article is to hit ⇧⌘R.