Reality Notes

Research

Technical writing on why a versioned Reality layer exists, grounded in how AIality is actually built — not a corporate blog, and not filler written to rank for a keyword.

2026-09-15
Freshness is a state, not a timestamp

A 'last updated' field tells you when something was checked. It can't tell you whether it's still true. Those are different questions, and conflating them is where stale-context bugs come from.

Research

Freshness is a state, not a timestamp