>One, my shoulder gets tired and sometimes hurts if I move back and forth between keyboard and mouse too much.
>Two, by the time I move to the mouse and back, I could have done the equivalent twice on the keyboard and moved on.
Vim got this part right, and it ends up being better than Emacs in that regard: in Emacs you also don't need the mouse but all the chording requires moving the hands too much. Ideal would be to take Emacs' non-modal editing and combine it with Vi's simply edit mode: for example, say you are in "command mode" only if you hold down Caps lock, but when the button isn't held down the editor is always in insert mode.
>Two, by the time I move to the mouse and back, I could have done the equivalent twice on the keyboard and moved on.
Vim got this part right, and it ends up being better than Emacs in that regard: in Emacs you also don't need the mouse but all the chording requires moving the hands too much. Ideal would be to take Emacs' non-modal editing and combine it with Vi's simply edit mode: for example, say you are in "command mode" only if you hold down Caps lock, but when the button isn't held down the editor is always in insert mode.