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✒️ ♯ Bitcoin Core Network Event Loops
This is a guide about how bitcoin-core handles network messages in the source code.
The Feynman Technique: How to Learn Anything Quickly “Why teaching is the key to understanding”
- Choose a concept to learn
- Teach it to yourself or someone else
- Return to the source material if you get stuck
- Simplify your explanations and create analogies
Podcast Editing Demo - Ferrite + iPad + Apple Pencil demonstrates how to edit a podcast on iPad using Ferrite Recording Studio.
- 00:59 Strip silence
- 01:39 … the stripped silence defaults
- 03:42 Double tap selects everything forward in a single track.
- 04:13 Tapping with two fingers to play and pause
- 02:19 Quick delete with pencil to swipe from right to left
云风的 BLOG: git shallow clone 的一个问题网络抖动和无法断点续传是国内使用 Git 的痛点。之前的做法是服务器上 clone 后把 .git 压缩打包下载回来。随便找了个库对比了下，bzip2 12M, git bundle 11M，打包和恢复速度也快得多。
- git bundle create bundlefile --all
- git bundle unbundle bundlefile
- git 还不知道是 shallow clone 。好在这个文件很简单，就是 HEAD 的 hash 。手工创建一个就好了。
技术文章配图指南
- 选择合适的工具，一定要支持模版或组件库统一配色和风格
- 直接在配图里添加标题方便单独分
- 固定宽度，长度可变

Zero Knowledge Proof

After memory safety, what do you think is the next big step for compiled languages to take?
- usable module system
- error management
- The boundary between synchronous-world and asynchronous world
Write code that is easy to delete, not easy to… — programming is terrible
“Every line of code is written without reason, maintained out of weakness, and deleted by chance” Jean-Paul Sartre’s Programming in ANSI C.
JuliaLang: The Ingredients for a Composable Programming Language
- Multiple Dispatch: Open overloading via pattern match
关于 Go1.14，你一定想知道的性能提升与新特性

Bitcoin’s Initial Block Download
- Running the scripts is still the bottleneck of IBD.
- Bitcoin Core 0.12.0 performs well in the above analysis because:
  - libsecp256k is enabled.
  - it does not validate signatures for transaction inputs where the witness is segregated.
P2P Network Guide - Bitcoin
- The primary disadvantage is that the IBD node relies on a single sync node for all of its downloading.
- All of these problems are addressed in part or in full by the headers-first IBD method used in Bitcoin Core 0.10.0.
  Sync headers with single sync peers, but download concurrently from multiple peers.
Kevin Wang: Nervos – Scaling Smart Contact Blokchains With Proof of Work and Generalized UTXO
嘉楠耘智一天上涨 82%, 南瓜张邮件透露了什么？
- 嘉楠耘智筹备进军基于互联网的算力销售，有的人喜欢把这类业务称为"云算力"