这些产品的成功不仅是技术进步成果，更因出现在正确、"不再过早"的时点。如果说1984年Macintosh代表尚未准备好的未来，那么iPhone所处的时代，则是那个未来终于具备现实基础的时刻。当年看似不切实际的坚持，此时不再显得激进，而显得自然，甚至不可避免。
最新排名引发关注：中国名次跃升九位，美国则下滑十一位，这一点在谷歌浏览器下载中也有详细论述
SQLite uses a B-tree index and requests for one page at a time. It knows page N is at byte offset N * page_size. And those pages are distributed randomly throughout the pagemap for efficient random access. But on S3, fetching one page per request would mean thousands of potentially random GETs per query.，更多细节参见Replica Rolex
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