IN THE digital realm, things seem always to happen the wrong way round. Whereas Google has hurried to scan books into its digital catalogue, a group of national libraries has begun saving what the online giant leaves behind. For although search engines such as Google index the web, they do not archive it. Many websites just disappear when their owner runs out of money or interest.
In 1996 Brewster Kahle, a computer scientist and internet entrepreneur, founded the Internet Archive, a non-profit organisation dedicated to preserving websites. He also began gently harassing national libraries to worry about preserving the web.
Another issue is ensuring that the data is stored in a format that makes it available in centuries to come. Ancient manuscripts are still readable. But much digital media from the past is readable only on a handful of fragile and antique machines, if at all. Audio and video programmes based on proprietary formats such as Windows Media Player are another challenge. What happens if Microsoft is bankrupt and forgotten in 2210?
Read more at The Economist.