Wouldn't it be precisely the very minimal movements that make the keyboard and mouse most expressive? If more grand movements were required, that means it would

Wouldn't it be precisely the very minimal movements that make the keyboard and mouse most expressive? If more grand movements were required, that means it would be more effort to express the same things. Or maybe we're not thinking of the same "expressiveness"? Maybe you mean expressivity of emotion while I mean expressivity of ideas?