User blog comment:Rupert Giles/Global Navigation Update/@comment-28736347-20141206235831/@comment-5558012-20141207031219

As I said, it depends on the method you use (and I did say can take, not will take). You can do what you stated, using the scroll wheel, clicking the scroll wheel and using the directional arrow, JavaScript (back-to-top button), home/pageup, and whatever others I'm not familiar with. Personal preference matters. A mouse (often) has a scroll wheel for a reason.

Global search is not complete. It will be a real search in the future just like a local search.