What I saw on the web on 2023.5.20

1. Cheap Good Covid Tests
   by siderea
   https://siderea.dreamwidth.org/1814478.html
   expiring soon, yes, but cheap
   via rss
   
   
2. Your Book Review: Cities And The Wealth Of Nations/The Question Of Separatism
   by anonymous person reviewing Jane Jacobs, posted by Scott Alexander
   https://astralcodexten.substack.com/p/your-book-review-cities-and-the-wealth
   reading this doesn't make me less interested in Jane Jacobs. but i've not read her stuff yet.
   via rss
   
   
3. The Call to Learn
   by Clifford Stoll
   https://www.youtube.com/watch?v=Gj8IA6xOpSk
   because someone mentioned how blandly uniform all TED talks are, and i remembered that there was at least one exception
   via googlery after see above
   
   
4. The Miracle Sudoku
   by Mitchell Lee and then Simon Anthony
   https://www.youtube.com/watch?v=yKf9aUIxdb4
   this is always a joy to watch. the universe is indeed singing to us
   via memory