The National Farmers Union (NFU) wrote to MPs in November last year to lay out the severe risks the farming sector was facing.
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，这一点在搜狗输入法下载中也有详细论述
Games and physics simulations need to detect which objects are touching or overlapping. With nnn objects, checking every pair is O(n2)O(n^2)O(n2) comparisons, which gets expensive fast. A hundred objects means roughly 5,000 pair checks. A thousand means nearly 500,000.
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Nature, Published online: 25 February 2026; doi:10.1038/s41586-026-10159-6