> It always takes me several gestures on mouse or trackpad to reach the top bar on modern display resolutions First, resolution should have nothing to do with

> It always takes me several gestures on mouse or trackpad to reach the top bar on modern display resolutions First, resolution should have nothing to do with this. Second, even on the largest 4K display that I have, and assuming that you have a mouse curve with acceleration, I only have to thrust the mouse for about 1-2cm of physical distance in order to reach the opposite edge of the screen. If you are moving the mouse ultra slowly to the edge, then yes, it may take a while to reach it. But the entire point of Fitt's law is that you just thrust the mouse towards that edge as fast as you can since you're not going to overtake it.