As recently as the 1980’s, phone calls over copper wire could carry only one page of information per second; today, a thin strand of optical fiber can transmit 90,000 volumes in a second. In 1980, a gigabyte of data storage occupied a room; now, 200 gigabytes of storage fits in your shirt pocket.
近至20世纪80年代，有线电话一秒钟只能传递一张纸的信息；如今，一根小小的光纤可以在一秒钟传递90 000卷书。1980年，1GB数据要一间屋子才放得下，如今，200GB的存储空间不过衬衫口袋大小。