Count-less j/k/<Down>/<Up> in normal and visual mode act as gj/gk, so long wrapped lines (mostly Markdown) can be navigated screen line by screen line. Counts still move by real lines to keep relative-number jumps working, and operator-pending mode is untouched (dj/yk stay linewise). Insert-mode <Down>/<Up> follow display lines too, deferring to the popup menu when it is visible.