It took you 15 seconds because its a terrible example, _around time Y_ is doing insane lifting of this concept. Then "based on other information" okay so some other information is enabling this.
It turns out that in reality, I usually know both "around time Y" and "other information". You're going to narrow me down from 10 accounts to 1, or from 100 to 10.
In huge number of cases you will have timestamps in the payload anyway, since most db records will have unredacted createdOn, updatedOn fields for display in the UI.
