# 144. Street Dance Girl

> The cover photo shows a POPPING street dance competition I saw below the mall after dinner. The rhythm was infectious—I stood there watching for quite a while. To be young again!

- Issue: 144
- Published: 2023/09/04
- HTML: https://weekly.tw93.fun/en/posts/144
- JSON: https://weekly.tw93.fun/api/en/posts/144.json
- Chinese original: https://weekly.tw93.fun/posts/144.md

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<img src="https://gw.alipayobjects.com/zos/k/1/144.jpg" width="800" />

<small>The cover photo shows a POPPING street dance competition I saw below the mall after dinner. The rhythm was infectious—I stood there watching for quite a while. To be young again!</small>

> **Record the down-to-earth trending technologies seen every week, and publish them here after screening. If you find it good, you can follow this weekly to get update notifications.**

## Technical Related

**Practical AI for Teachers and Students**  
<https://www.youtube.com/watch?v=t9gmyvf7JYo>  
An excellent course from Wharton (UPenn) showing how AI can simplify teaching and improve student outcomes—with practical prompts and guidance for classroom use.  
<img src="https://cdn.tw93.fun/blog/upic/BjBQGi.png"   width="800" />

**Build Your Own X**  
<https://github.com/codecrafters-io/build-your-own-x>  
Master your programming skills by recreating your favorite technologies from scratch—from 3D renderers and neural networks to operating systems and text editors.

## Trending Tools

**EpicEasing: Ease Animation Debugger and Previewer**  
<https://epiceasing.com/>  
A polished tool for generating and debugging easing animations. it supports Ease, Spring, and Bounce curves and can export code for CSS, SCSS, Objective-C, and Swift.  
<img src="https://cdn.tw93.fun/blog/upic/Sap22r.png"   width="800" />

**Compiling Chromium from Source**  
<https://chromium.googlesource.com/chromium/src/+/main/docs/mac_build_instructions.md>  
I spent a few hours on Friday evening compiling Chromium. it’s a fascinating process—if you have some time and a powerful Mac, it’s worth a try.  
<img src="https://cdn.tw93.fun/blog/upic/KsAdZ0.png"   width="800" />

**RealChar - Your Realtime AI Character**  
<https://github.com/Shaunwei/RealChar>  
Create, customize, and converse with your own AI character or companion in real-time. You can define their personality, background, and even their voice.  
<img src="https://cdn.tw93.fun/blog/upic/dtz8sy.png"   width="800" />

**The Pudding: Visual Journalism**  
<https://pudding.cool>  
A highly creative site that combines data visualization with storytelling to explain complex topics. it’s a brilliant example of modern multimedia journalism.

## Just Looking Around

**Paul Krugman’s Economics Masterclass**  
<https://bilibili.com/video/BV1oU4y177vk>  
A 2.5-hour masterclass by the Nobel laureate Paul Krugman. it’s very accessible even for those without an economics background.  
<img src="https://cdn.tw93.fun/blog/upic/4Evdkd.png"   width="800" />

**Lee Hsien Loong’s NDP 2023 Speech**  
A very pragmatic and grounded speech. it made me want to visit Singapore again soon.

**Sam Altman’s Advice for Ambitious 19-Year-Olds**  
<https://blog.samaltman.com/advice-for-ambitious-19-year-olds>  
The short version:

1. Work with smart people.
2. Build something valuable.
3. Take appropriate risks.
4. If you go to school, make sure you learn something.
5. Join high-growth startups over big companies.
6. Don't let salary be the primary factor.
7. Only start a company if you absolutely love the idea.