失去驾驶乐趣，是AI时代汽车消费者最大的悲哀。
Validating the business idea and investing about $40,000
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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.
the IBM 2984 Cash Issuing Terminal. Like many other early ATMs, the 2984 had its