Collective procedural memory is a group’s memory of how to do things, as opposed to a group’s memory of facts. It enables groups to mount effective responses to periodic events (e.g., natural hazards) and to sustain collective projects (e.g., combatting climate change). This article presents an account of collective procedural memory called the Ability Conception. The Ability Conception has various advantages over other accounts of collective procedural memory, such as those appealing to collective know-how and collective identity. It also demonstrates new applications for collective procedural memory. I develop three in this article: to social epistemology, to the ethics of memorialization, and to a pattern of group vulnerability to recurring hazardous events that I call the saeculum effect.

集体程序记忆是群体对如何做事的记忆，而不是群体对事实的记忆。它使团体能够对周期性事件（例如自然灾害）做出有效反应并维持集体项目（例如应对气候变化）。本文介绍了一种称为能力概念的集体程序记忆。与其他集体程序记忆的解释相比，例如那些诉诸集体知识和集体身份的解释，能力概念具有多种优势。它还演示了集体程序记忆的新应用。我在本文中提出了三个方面：社会认识论、纪念伦理学以及群体对反复发生的危险事件的脆弱性模式，我称之为“萨库鲁姆效应”。