Digital Dark Age
If future digital devices can not read some of the existing data formats we might lose a huge chunk of human knowledge stored in these unreadable resources. This is the sign of what is called “The Digital Dark Age”. In Wikipedia this term is defined as “ ... a possible future situation where it will be difficult or impossible to read historical documents, because they have been stored in an obsolete digital format. This could cause the period around the turn of the 21st century, when viewed from the future, to be comparable to the Dark Ages in the sense that there will be a relative lack of written record.”