Tools are generated by defined steps, fulfill distinct uses, and elicit affordances or mental representations. When the latter are recombined, they are perceived as “technical reasoning,” resulting in novel tools when executed. They can be exchanged, varied, and selected between individuals in a cumulative social process. Tools are materialized, “petrified” memes forming a duality within the framework of active externalism.

中文翻译：

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作为“石化模因”的工具：二元性

工具由定义的步骤生成，实现不同的用途，并引出可供性或心理表征。当后者重新组合时，它们被视为“技术推理”，从而在执行时产生新的工具。它们可以在累积的社会过程中在个体之间进行交换、变化和选择。工具被物化了，“石化”的模因在积极的外部主义框架内形成了二元性。