There is one category of Knowledge Base tools where you're putting stuff in yourself: Emacs org-mode, Notion, Evernote, Roam etc. There's definitely benefit in

There is one category of Knowledge Base tools where you're putting stuff in yourself: Emacs org-mode, Notion, Evernote, Roam etc. There's definitely benefit in that. You could even take notes in the form on Anki cards. The other category, which is quite under-served in my biased[1] opinion, is the Knowledge Base that grows automatically and is maintained for you. You learn by spend time on various different articles, some of them you upvote on Hacker News. You do a number of such things all day everyday. Wouldn't it be great if a tool compiled all that information automatically, "your history" if you will, and made it easily available to you? That's https://histre.com/ https://histre.com/ [1] biased because I'm solving this problem by building Histre.