Unverified50% confidenceOpinionExact time
PKM工具演进历经四代：以Evernote(2008)为代表的数字化收集、以Notion(2016)为代表的结构化数据库、以Roam Research(2020)和Obsidian为代表的双向链接知识图谱、以及AI驱动的主动知识系统
1
Sources
50%
Confidence
Long-term
Relevance
8/5/2026
First Seen
Sources
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