我们共有八十亿人，几乎都聚集在横跨南亚与东亚的同一条狭窄地带。地球随城市的昼夜节律而脉动，每一次维基百科的实时编辑都点亮其上。一棵展示每一种已知语言的树。一片点云，其中每个点代表一千人。让人口统计成为可以感受的东西。
城市随人类的昼夜节律而脉动——人们入睡时区域变暗，醒来时变亮；维基百科编辑的闪光在各语言区域的中心点亮起（并非确切的编辑位置）。
Watch humanity drain out of the countryside and into the city — 24 nations crossing the 50% line as their rural and urban halves trade places, decade by decade since 1960.
A bar-chart race of adult literacy across five decades — nations hauling themselves from a third of adults reading to nearly all of them, with the 90% summit marked as each one crests it.
A bar-chart race of how long a newborn can expect to live — 24 nations sprinting up the decades, with mid-century leaps and recent dips laid bare.
A bar-chart race of the planet logging on — 25 nations climbing from near-zero to near-everyone as the internet sweeps across three decades.
A bar-chart race of female labour-force participation — 24 nations across the decades, where some send four in five women to work and others fewer than one in five.
A bar-chart race of births per woman as nations tumble from six or seven children toward one or two — the quiet demographic earthquake of the last sixty years, with a replacement line that countries slip beneath one by one.
地球上的每个人都是一个像素粒子（1:1000 比例）。八十亿个点，几乎全都集中在横跨南亚与东亚的一条狭窄地带上。
人类语系的三维树状图——印欧语系、汉藏语系、尼日尔-刚果语系等——从共同的根部生长。点击任意叶节点，即可通过浏览器的文本转语音听到“你好”。