The quadtree is the two-dimensional case of a broader family of space-partitioning data structures. Octrees extend the same idea to three dimensions (splitting cubes into eight children), KD-trees use alternating axis-aligned splits (splitting along x, then y, then x again), and R-trees group nearby objects into bounding rectangles. Each variant makes different tradeoffs between construction time, query speed, and update cost.
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X 上，@BrianRoemmele 直呼震惊，觉得这是给 AI 行业招黑，「片面思考，反人类。重视人类胜过 AI——永远。」，这一点在91视频中也有详细论述
// Synchronous transforms，详情可参考51吃瓜
Publication date: 28 February 2026
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