Your personal knowledge engine

Sift through
what you read.

Paste any URL — articles, YouTube, tweets, or upload a PDF. Answer two reflection questions. Build a wiki you can search.

Articles & Blogs
YouTube
X / Twitter
PDFs
nytimes.com

The Science of Spaced Repetition: Why We Forget and How to Remember

S
This piece argues forgetting is a feature, not a bug. What angle resonated most?
The connection between caring about something and remembering it...

Paste, reflect, remember

How it works

Three steps to a smarter you

Step 1

Paste any URL

Articles, essays, threads, videos, papers — drop in anything worth keeping.

Step 2

Answer 2 questions

Quick reflections that surface what actually matters to you.

Step 3

Query your wiki

Search your own words. Connected ideas, always retrievable.

Your knowledge garden

Everything you’ve sifted, in one place

Articles, videos, tweets, and PDFs — each with your personal takeaways, tags, and connections.

nytimes.com

The Science of Spaced Repetition: Why We Forget and How to Remember

New research reveals how strategically timed review sessions can dramatically improve long-term retention of complex information.

learningmemorycognitive-science
Mar 8, 2026
youtube.com

Building a Second Brain — The Complete Walkthrough

Tiago Forte walks through his entire system for organizing digital information and turning it into creative output.

productivityPKMnote-taking
Mar 5, 2026
x.com

@paulgraham on X

The most valuable skill in the age of AI isn't prompt engineering — it's knowing which questions are worth asking in the first place.

AIthinkingessays
Mar 3, 2026

Guided reflection

A conversation, not a summary

Sift asks you what resonated — so your wiki captures what you think, not just what the author said.

The Science of Spaced Repetition...

nytimes.com

S

This piece makes a compelling case that forgetting is actually a feature of memory, not a bug. A few directions we could explore:

  • The spacing effect — how does the review interval change what sticks?
  • Emotional salience — who decides what “matters”?
  • Practical application — are you already using spaced repetition?
The practical side really clicked. I’ve tried Anki before but always fell off. What struck me is the idea that you don’t need to remember everything — just the connections between ideas.
S
That’s a key distinction — memorizing facts vs. retaining the relationships between them. When you fell off Anki, was it because the cards felt disconnected from anything you actually cared about?
Exactly. Now I’m thinking the real move is only capturing things that connect to what I’m already working on.
Share your thoughts...

The output

Your ideas, not just summaries

Each wiki page captures your personal takeaways — written in your voice, tagged, and connected to your other ideas.

Forgetting as a Feature: Rethinking Memory Systems

learningmemoryspaced-repetitionPKM
The value of spaced repetition lies not in memorizing facts, but in strengthening the connections between ideas you already care about.

The Core Insight

The brain doesn’t forget randomly — it actively prunes information that lacks emotional salience or contextual relevance. This reframes “bad memory” not as a failure, but as a filtering system optimized for usefulness over completeness.

“You don’t need to remember everything — just the connections between ideas.”

The Shift: Capture What Connects

Instead of capturing everything “worth knowing,” the more effective filter is: does this connect to something I’m already working on or thinking about? This turns a knowledge management system from an archive into a thinking tool.

The practical takeaway: only sift what resonates. Let the rest go.

Source: The Science of Spaced Repetition: Why We Forget and How to Remember

You don’t rise to the level of your reading list. You fall to the level of what you remember.