Earth: Day Zero • Paper 068 of 512

Angular Momentum Observations

The Earth–Moon system possesses measurable angular momentum that must be explained by any reconstruction framework.

Angular momentum therefore represents one of the most restrictive physical constraints available to the Earth: Day Zero investigation.

Observational Role

Angular momentum is treated as an observation rather than a mechanism.

The framework first evaluates the constraint before attempting to explain it.

Constraint Function

Any proposed reconstruction that cannot accommodate observed Earth–Moon angular momentum becomes increasingly difficult to justify.