Why Cmd+W Archives Instead of Closing in Arc

Pressing Cmd+W in Arc — Ctrl+W on Windows — removes the current tab from the sidebar and files it in the Archive. It does not close it in the sense every other browser means. The tab remains findable through the Command Bar or the Archive view, indefinitely. **This is deliberate, and everything else about Arc's tabs depends on it.** Arc treats unpinned tabs as temporary by design and clears them automatically on a timer you can configure. A browser that quietly discarded your open tabs on a schedule would be intolerable. A browser that quietly files them somewhere you can retrieve them is merely tidy. Archiving rather than closing is what makes the automatic clearing acceptable, and the automatic clearing is what allows the sidebar to stay a working set rather than accumulating everything you have opened this week. **How to get a tab back.** Cmd+Shift+T brings the most recently archived tab back, and repeating it retrieves progressively older ones — the same keystroke every browser uses, applied here to the Archive rather than to a recently-closed list. For something older, the Command Bar on Cmd+T searches the Archive alongside everything else — start typing what you remember of the title and the archived tab appears in the results with the rest. There is no time limit on this, which is the practical difference from a normal browser's recently-closed list. **The Archive is not your history, and confusing them wastes time.** History records pages you visited. The Archive records tabs that were open in a Space and have since been cleared. A page you clicked through months ago lives in history; a tab you had open yesterday lives in the Archive. When someone says a tab has disappeared in Arc, they have almost always looked in history and not found it there. The Command Bar searches both, so when you are not sure which applies, that is the place to start. **The behavioural change is the real point.** In Chrome, Cmd+W carries a small risk — it might have been something you still needed, and the recently-closed list is short and time-bound. In Arc that risk is gone, so people close tabs freely and their sidebar stays legible. Users arriving from other browsers often keep the old caution for a week or two before noticing they no longer need it. **If you want a tab exempt from all of this**, pin it with Cmd+D. Pinned items survive Cmd+W's tidying, survive Cmd+Shift+K clearing every unpinned tab in the Space, and survive the automatic timer. Pinning is Arc's replacement for bookmarking, and the sidebar's division between pinned and unpinned is the single distinction from which most of the browser's tab behaviour follows. **One genuine edge case.** Cmd+W on the last remaining tab in a Space archives it and leaves the Space empty rather than closing the window, which is different from Chrome's behaviour of closing the window when the final tab goes. Closing the Arc window itself is Cmd+Shift+W. People who habitually press Cmd+W repeatedly to clear up and expect the window to disappear at the end find it still sitting there, empty — which is consistent with Arc's model, since a Space is a container that persists whether or not anything is in it.