Definition
Homard metaphor — growth requires shedding armour; the between-shell phase is exposed, not broken.
Origin
Folk growth parable (popular coaching retelling; lobster moulting biology is often oversimplified in memes): when the lobster / homard outgrows its exoskeleton, it sheds the old shell, passes through a vulnerable interval, then forms a larger one.
Mechanism
If you numb or social-brake the vulnerability phase, you freeze size — same armour, smaller life.

Mechanism diagram — frozen armour (growth stopped) versus shed to grow (vulnerable interval, then larger shell). Related doctrine: Transfer of Certainty.
Sources
Cite
- Cannon, W. B. (1932). The wisdom of the body. W. W. Norton
- Sapolsky, R. M. (2004). Why zebras don’t get ulcers (3rd ed.). Holt
Applications
Teaching image for vulnerability-between-shells — growth interval before the next armour forms.