SSSAR is an augmented-reality fare-validation concept, originally built for Apple Vision Pro, where an AR overlay is used to validate fares.

The research question

Could current headsets track people persistently and overlay information on them? I looked at Apple Vision Pro (M5, visionOS 26 and 27) and Meta Ray-Ban smart glasses.

Finding

Both are blocked by platform privacy policy, not hardware limits. The silicon can run person-tracking models. The operating systems and developer terms deliberately do not allow apps to do this.

That matters for the design. A product built on a capability the platform forbids has a hard dependency on a rule it cannot change.

Redesign direction

Two viable directions came out of the research:

1. Track a physical token instead of a person.
2. A fixed, gate-mounted validation station, so the sensing hardware is not worn or carried.

Both keep the validation problem and drop the person-tracking constraint.