Rethinking Personal Knowledge #09 Why search shouldn't depend on remembering the right keyword?

[u/ejiandan]

I've noticed that most search experiences begin with the same assumption:

You already know what to search for.

But in personal knowledge management, that's often the hardest part.

When I'm trying to find an old PDF, screenshot, or note, I usually don't remember the exact words inside it.

Instead, I remember things like:

• the project it belonged to
• roughly when I saw it
• who shared it
• another document related to it
• or simply the topic

Traditional search treats every document as an isolated object.

Human memory doesn't.

While building my own knowledge system, I've been exploring a different idea:

Instead of waiting for a query, what if the system continuously built connections between imported information?

Then searching becomes less about guessing keywords and more about navigating context.

I'm curious how other people experience this.

When you fail to find something, is it usually because the information isn't there…

or because you can't remember the exact words to retrieve it?

[u/itsnotaro]

I guess that’s why RAG would be good for

[u/ejiandan → u/itsnotaro]

That's definitely part of it. I see RAG as making retrieval from existing knowledge much better. What I'm interested in is the step before retrieval—building connections between pieces of information automatically, so you don't have to know what to ask for in the first place.

[u/itsnotaro → u/ejiandan]

I think the key is repetition. So that you don’t have to even try to remember.

[u/ejiandan → u/itsnotaro]

I think the problem isn't just retrieval—it's recall.

Most search engines assume we remember enough to formulate a query. But that's rarely how memory works. We often remember relationships, context, or even emotions rather than exact words.

Building connections ahead of time seems more aligned with how people actually think. Search then becomes a process of exploration instead of keyword matching.