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The brain has a similar LRU mechanism, so some knowledge needs to find an "extra environment" to store.
Everything and understanding of them is constantly changing, so everything is constantly changing also!
I pursue first principles, original documents and unprocessed sources of knowledge, pure, solid, independent and thoughtful just like espresso!
If what I recorded is helpful to you, it's my pleasure!
If there are any errors, please contact with me.
If one day my site is no longer updated, please check the latest push.

Copyright © 2026 Jeff Lee (ljf12825). All rights reserved.

This repository contains different types of content, each licensed separately:

1. Blog Content
   Unless otherwise noted, blog posts and articles are licensed under
   Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0).
   See: https://creativecommons.org/licenses/by-sa/4.0/

2. Article Content
   Papers and academic-level writings are licensed under
   Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0).
   See: https://creativecommons.org/licenses/by-nc-sa/4.0/

3. Source Code
   Source code in this repository is licensed under the MIT License,
   unless explicitly stated otherwise in a subdirectory.
   See: https://opensource.org/licenses/MIT

4. Assets and Other Materials
   Images, diagrams, datasets, and other project assets are, unless otherwise stated,
   licensed under the same license as the content they accompany.

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- If a file or directory contains its own LICENSE file, that license takes precedence.  
- If no license is specified, all rights are reserved.