Progresso tecnológico e trabalho duro

1. Tools free human (and animal) time

2. Tools are not created or replenished alone. They come from savings used as a) investment / innovation, b) repair, c) depreciation over time, ergo savings to a) improve, b) repair, c) replenish

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HUMANPROGRESS.ORG

Technological Progress Freed Kids from Hard Labor

Washing machines and tractors freed America's children to receive an education.