在寻亲之外，许冰煌如此理解杜耀豪此行的意义：“个人在宏大的家族离散历史中，个体在后离散时代，去处理长时间、复杂的家族历史遗产等议题。”
But that only goes so far. When someone in the crowd shouted "Play the Spice Girls!", he responded with a swift riposte: "Sorry, I don't take requests."
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placement: “lower abdomen height”
Nature, Published online: 25 February 2026; doi:10.1038/s41586-026-10175-6
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The efficiency depends on the query size relative to the data distribution. A small query in a sparse region prunes almost everything. A query that covers the whole space prunes nothing (because every node overlaps), degenerating to a brute-force scan. The quadtree gives you the most benefit when your queries are spatially local, which is exactly the common case for map applications, game physics, and spatial databases.