Many graph claims are valid only during an interval or as of an observation time. Temporal modeling prevents a once-true edge from masquerading as permanently current.

Facts Can Be Time-Bounded

When credible sources disagree, collapsing them into one fact loses important uncertainty. A graph can represent competing claims, their provenance, and resolution status.

Contradictions Should Remain Visible

Nodes, edges, capabilities, and weights may appear, disappear, or expire while an agent runs. Algorithms must define snapshot, streaming, or incremental semantics to avoid mixing incompatible graph states.

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