
Civilization, next hands
Generations
UN WPP 2024 · cited year on each plate
Empty cribs are infrastructure.
UN World Population Prospects plates set the levers. One cradle or two. Country scenarios sit as Logos cards. Walk five generations as lights on a field. Craft is what still copies, and what can still leave on a seed ship.
- Hands light the field.
- Craft is what the hands still know how to repair.
- Roots are whether new hands become a people, not only a payroll.
- A second cradle is craft that left in time.
Year-ring
Generations as arcs. Twenty-one soft ticks. Time as a bowl.
Two cradles
Earth and a second house. Craft that still works can send seed ships.
Replacement
~2.1
Births per woman for long-run size stability in a closed population.
World 2024
~2.2–2.3
Global TFR in the UN 2024 revision. Down from ~3.3 around 1990.
Countries below 2.1
More than half
Share of countries and areas already under replacement fertility.
Ultra-low
<1.4
Working label in 2024 materials for the deepest troughs of fertility.
Fertility figures are rounded from United Nations World Population Prospects 2024 and World Fertility 2024. Frozen Logos plates inside a toy. Migration and mortality stay simple so one ladder stays visible.
“Rome fell because the Romans stopped making Romans.”