Stacking Functions
Bill Mollison’s permaculture principles include a design rule: every element should serve multiple functions, and every function should be supported by multiple elements. Redundancy plus efficiency creates resilience without fragility.
A pond provides: water storage, fish protein, irrigation source, microclimate cooling, duck habitat, fire protection, reflection for passive solar heating of adjacent buildings. One element, seven functions.
Chickens provide: pest control, fertilizer production, tillage (they scratch and turn soil), meat, eggs, entertainment, alarm system (they alert to predators). Again, one element serving many needs.
The contrast with industrial monoculture is stark. Corn equals corn. The field does one thing. When that thing fails, the system fails. When one element in a stacked system fails, other elements provide backup.
The design question: “What else could this do?” and “What else could do this?” A fence could also be a windbreak, a trellis, a wildlife corridor. Nitrogen fixation could come from trees, from cover crops, from animal rotation, from compost. Functions overlap; elements multiply uses.
When one element fails, the system degrades gracefully because functions are distributed. No single point of failure.
Antifragile design in any domain follows this pattern. A revenue stream that also builds brand (content marketing). A hire who codes, recruits, and mentors. A daily practice that builds health, creativity, and relationships (morning walk with spouse).
Single-purpose elements create brittleness. Stacked functions create resilience.
Related: [[edge-effect]], [[self-sufficiency-paradox]], [[maintenance]]