How human ideas evolve: Technical progress may not require weeding out weaker designs

Summary
Human culture evolves similarly to living organisms, but unlike biology, human creativity can accumulate improvements at an incredible speed. But how exactly does the process of transmitting and modifying ideas between people work?
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How human ideas evolve: Technical progress may not require weeding out weaker designs
Human culture evolves similarly to living organisms, but unlike biology, human creativity can accumulate improvements at an incredible speed. But how exactly does the process of transmitting and modifying ideas between people work?
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