This article examines how Finland's nuclear waste repository safety assessment experts summoned memories of Seppo: a deceased colleague whose ‘spectre’ was said to still ‘haunt’ their workplace. First, it tracks how Seppo appeared in predecessor parables: cautionary tales told about his death, which conveyed value judgements about how experts ought to act, engage, and aspire. Second, it explores how Seppo's long‐time ‘right‐hand man’ Gustav still felt haunted by his colleague's affective intensities, scientific vision, and sharp tongue. This led Gustav to prod his workmates to reconsider how they modelled Finland's ecosystems many millennia into the future. Studying this ethnographically revealed how traces of Seppo's past life infused living experts with emotions, opened them to alternative futures, and spurred them to rethink their professional values. This article concludes by introducing expert afterlives as a temporal, epistemic, and affective nexus that can shape how technocratic projects are organized and how expert knowledge is made.

中文翻译：

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Seppo的幽灵：芬兰核废料专家的来世

本文研究了芬兰的核废料库安全评估专家如何召集Seppo的回忆：Seppo是一位已故的同事，据说他的“幽灵”仍然“困扰着”他们的工作场所。首先，它追踪了Seppo在前身寓言中的出现方式：传说中的故事讲述了他的死讯，传达了有关专家应该如何行动，参与和追求的价值判断。其次，它探讨了Seppo的长期“得力助手”古斯塔夫（Gustav）仍如何被同事的情感强度，科学视野和敏锐的语言困扰。这导致古斯塔夫（Gustav）促使他的同事们重新考虑他们如何模拟未来几千年的芬兰生态系统。通过民族志研究，揭示了Seppo的前世遗迹如何给生活中的专家们注入了情感，并为他们开辟了另类的未来，并促使他们重新思考自己的职业价值观。本文最后通过介绍专家的后世是暂时的，认知的和情感的联系，可以决定技术专家项目的组织方式和专家知识的产生方式。