用户为实体硬件付费的意愿，天然高于为虚拟服务订阅付费，一个售价299美元的智能戒指，其价值是具体、可感知、且符合传统消费心智的，这为创业公司提供了最直接的启动现金流。
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Think about the user experience difference. In traditional search, someone sees your site listed among ten results and must decide whether to click based on a title and two-line description. In AI search, someone reads an answer that includes information from your content, sees your site cited as the source, and arrives at your page already understanding its value and relevance. The qualification happens before the click, resulting in higher-quality traffic with better engagement metrics.
* 时间复杂度: O(n²) 最好: O(n) 空间复杂度: O(1) 稳定: ✓