Right now the Timeline shows all edits by both users on pages where both users have made 1+ edit, regardless of the edit date. Given that Wikipedia is 17+ years old, there are a lot of "two ships passing in the night" edits that may take up space on the Timeline, especially on popular pages (e.g. Village Pump) — see also {T189850}
There are a few ways we can think about thisIf two users edit the same page over a long period of time, they are not interacting. ([[https://tools.wmflabs.org/sigma/editorinteract.py?users=Fox&users=The+Interior&users=&startdate=&enddate=&ns=&server=enwiki|Like these two users on the Iguana article.]]) I'm calling this the "interaction threshold"[1] — for now it is set to 'all time' but this is turning out to be too simplistic. Because 'all time' already exists and hypothetically could serve a purpose we should keep it as a somewhat hidden option. There are two leading ideas for how to define the new default interaction threshold:
* **Hiding potential clutter**# Whatever is set within the date range parameters
** Allow users to hide a specific page from the Timeline (e.g. Village Pump)
** Allow users to only see edits in the same sections on talk pages
* **Edits within a certain date range**
** Allow users to toggle if the date range for edits shown on the Timeline UI should also define the "pages where both users edit" (e.g. include and display edits from August 1, 2008 to August 15,# Give users a dropdown — all time / year / month / week
[1] Shoot me if I ever suggest putting the words "interaction threshold" in the UI. 2008) — and set as default
* **Set a threshold**
** Do not include pages where the length between edits is 365 days
** Give users a toggle to set this threshold — all time / year / month / week☠️