Casque Fidelity principle
Lessons from Great Hornbill
Feed through the wall.
Sealed-Nest Provisioning

Core lesson
Trust becomes architecture when one life guards the opening and another feeds through it.
Biological basis
Great Hornbills nest in tree cavities where the female seals herself inside with the chicks, leaving a slit through which the male passes food until the family emerges.
Best use cases
Where this lesson tends to be most useful in practice.
TrustProvisionFamily protectionNestingCommitment