Page 166 - Flipping book The Adam Paradox Hypothesis - Second Edition.pdf
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The Ādam Paradox Hypothesis 143
Visualizing the Debate
Figure 12.5 — Cognitive vs. Demographic Trigger Models illustrates the difference.
The demographic-first model predicts a slow, steady slope. The cognition-first model predicts a sudden
threshold. The APH model combines both: a sharp ignition point, followed by accelerated demographic
slope. Archaeology aligns with the APH curve.
Figure 12.6 — Simulation of Cultural Transmission
Simulation of Cultural Transmission reinforces this: in small populations, innovations are easily lost.
But once groups surpass a cognitive threshold that allows scaling, demography stabilizes innovation.
Cognition lights the fire; demography feeds it.

