Earth: Day Zero • Paper 246 of 512
Directional Asymmetry of the Event
A planetary-scale event would not necessarily produce uniform response.
Directional asymmetry may preserve information about forcing direction, energy distribution, entry geometry, exit geometry, or later system relaxation.
Observation
Asymmetry may appear through basin placement, elevation gradients, mantle heterogeneity, continental preservation, oceanic structure, and Antarctic–Pacific relationships.
Constraint Analysis
The Earth: Day Zero framework treats asymmetry as a testable map-level signal rather than as proof of mechanism.
Signal Question
Does the distribution of planetary structures preserve directional organization linked to the event?
Verification Path
Testing requires comparing directional models against null distributions, plate reconstructions, mantle structure, and competing tectonic explanations.