What does confidence evolution mean in CTK Replay?
Confidence evolution shows how trust moved across the replay window as evidence quality, freshness, contradictions, and fidelity changed over time.
Why can confidence drop even if some signals still look healthy?
Confidence can fall when healthy-looking signals conflict with stronger runtime evidence, stale observations, or explicit contradictions in the same chain.
What is the purpose of fidelity tiers?
Fidelity tiers tell operators whether the replay window is rich enough to defend a trustworthy story or still too partial for strong action.
Why does Replay show confidence movement instead of one static score?
A static score hides how trust changed. Replay keeps the trajectory visible so operators understand why the current posture should or should not be trusted.