2021 年，Anthropic 联合创始人 Ben Mann 在 11 天里从盗版网站 LibGen 下载了大量侵权书籍；次年，另一个公开宣称「在大多数国家故意违反版权法」的网站 Pirate Library Mirror 上线，Mann 把链接发给同事，留言：「来得正是时候！！！」
Quadtrees are everywhere spatial data exists. Mapping services use quadtree-like tile pyramids to serve map tiles at different zoom levels (Bing's quadkey system, for example, addresses tiles as base-4 paths). Game engines use them for collision detection and visibility culling. Geographic information systems use spatial indexes to store and query spatial datasets. PostGIS uses GiST indexes (R-tree-style) for spatial queries on geometries, while PostgreSQL's core supports quadtree-like SP-GiST indexes for certain data types like points.。业内人士推荐快连下载安装作为进阶阅读
This story continues at The Next Web，详情可参考51吃瓜
30多年前，在福建最贫困的闽东山区任职，习近平同志就明确强调：