Which concept would be most useful to explain how a technology is improved across generations within a culture?

Which concept would be most useful to explain how a technology is improved across generations within a culture?

• A. genetic drift
• B. acculturation
• C. cumulative cultural evolution
• D. social facilitation

Answer: (C)

Cumulative cultural evolution explains how technologies improve across generations within a culture by building on previous knowledge, skills, and tools. Through social learning and teaching, people pass on designs with enough fidelity that small improvements can accumulate over time. Each generation can modify and enhance what they learned, and those refinements become the foundation for the next generation, creating a ratcheting effect where complexity and efficiency increase rather than reset. This is why a simple technology can evolve into sophisticated versions as ideas are shared, tested, and refined across many learners and innovators in a culture. Genetic drift isn’t about cultural knowledge or technological change; it’s random change in genetic frequencies. Acculturation involves adopting another culture’s norms, not the within-culture accumulation of improvements. Social facilitation affects performance in the presence of others, but it doesn’t explain how knowledge itself gets improved across generations.

Cumulative cultural evolution explains how technologies improve across generations within a culture by building on previous knowledge, skills, and tools. Through social learning and teaching, people pass on designs with enough fidelity that small improvements can accumulate over time. Each generation can modify and enhance what they learned, and those refinements become the foundation for the next generation, creating a ratcheting effect where complexity and efficiency increase rather than reset. This is why a simple technology can evolve into sophisticated versions as ideas are shared, tested, and refined across many learners and innovators in a culture.

Genetic drift isn’t about cultural knowledge or technological change; it’s random change in genetic frequencies. Acculturation involves adopting another culture’s norms, not the within-culture accumulation of improvements. Social facilitation affects performance in the presence of others, but it doesn’t explain how knowledge itself gets improved across generations.