The Problem: We often spot someone on the grid while driving or working but can't chat immediately. By the time we are free, the user is gone.
The Solution: A "Rewind" button to see a static snapshot of the grid from 1-12 hours ago.
Why: It solves missed connections and increases engagement. Great potential as an Xtra/Unlimited feature.
Safety: Only show "Was nearby at [Time]", never real-time distance for past views.