截至2024年底，中国60周岁及以上人口已突破3.1亿，占总人口比重达22% [37]。进入2026年，这一数字将持续攀升，推动银发经济规模迈向12万亿元人民币的大关 [37]。这一领域不仅是国家政策支持的“国补”重点，更是普通人创业与择业的高确定性赛道 [37, 38]。
World Service,·23 Feb 2026,·26 mins
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Gridinsoft (16 days)
当脱离参考、仅凭文本生成纯写实内容时，Seedance 2.0生成的人物真实感和光影细节的精细度有时会不及两家竞品。这可能源于双方在模型架构和训练数据侧重上的不同设计哲学。
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This is the same idea behind binary search. In a sorted array, you compare against the middle element and eliminate half the remaining candidates. In a quadtree, you choose one of four quadrants and ignore the other three regions. Each level narrows the search space by a factor of four instead of two.
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