字幕列表 影片播放 列印英文字幕 there over forty-three quintillion possible permutations for the rubik's cube and she can solve any one of them in about a minute. she's nine years old and doesn't know the specifics of the mathematics and the algorithms that make it possible. only that she can do it. in twenty five years the internet, which will have grown up with her, educated, informed, and entertained her, her whole life, will continue to connect her to her family, friends, and colleagues the world over, as they share their lives. but effortlessly, invisibly, securely. she'll be thirty four then and won't spare a thought for the specifics of the technology or the massive complexity of the networks that make it possible. only that it is possible, every time.