Metric light cone and causal order

ID: relativity.causality.metric_light_cone

The metric distinguishes locally spacelike separations from future-directed causal signal paths.

Status: canonical_reference

Uncertainty

• This canonical_reference badge is a theory locator; its claim still needs independent, claim-specific validation.

Sources

• https://doi.org/10.1103/5gl8-3j6p

Claim boundaries

• This badge locates a theory claim; it does not validate a physical effect or engineering application.

Diagnostic context only. Cite independent evidence for claims about the world.