Direction of coverage
Weighted tone across source tiers, languages, reach, and audience relevance.
Experimental analytical instrument · methodology 2026.1
S-G Index: resilience and pressure
A composite framework for reading the information environment around a state: external narrative pressure, the speed at which it gains institutional weight, and the resilience of the response.
Structure
What the index measures
The S-G Index is not a rating of whether coverage is “good” or “bad”. It is a structured signal that helps an operator understand where pressure originates, how quickly it propagates, and whether the institutional response is keeping pace.
Weight of pressure
Coordination, propagation speed, and movement from media into the institutional layer.
Response capacity
Reaction time, audience targeting, channel choice, and the observed effect of the response.
Origin and route
Decomposition by geopolitical, media, expert, and policy vectors.
Mode transition
Criteria for moving from observation to heightened attention and active response.
Evidence strength
Sample coverage, source diversity, verification status, and uncertainty around the signal.
Interpretation
How an operator reads the signal
A high Gravity score with neutral Sentiment can matter more than a burst of negative coverage: it may indicate that a narrative is gaining coordinated institutional weight.
NormalObserve
No threshold breach. Maintain source coverage and verification cadence.
HeightenedPrepare
Confirm the signal, map audiences, and prepare messages and decision routes.
CrisisAct
Activate the agreed protocol, decision ownership, and update rhythm.
Limitations
The index is experimental and undergoing expert review. Thresholds, historical calibration, and source coverage continue to evolve. It supports professional judgement; it does not replace it. Inspect the data inventory and transparency standard.