History, As Recorded on Twitter, Is Vanishing From The Web, Say Computer Scientists
Almost 30 per cent of recorded history, shared over social media such as Twitter, has disapeared, according to a new study of the Egyptian uprising and other significant events
"They found that the older the social media, the more likely its content was to be missing. In fact, they found an almost linear relationship between time and the percentage lost.
The numbers are startling. They say that 11 per cent of the social media content had disappeared within a year and 27 per cent within 2 years. Beyond that, SalahEldeen and Nelson say the world loses 0.02 per cent of its culturally significant social media material every day.
That's a sobering thought. Social media plays an important role in the spread of information around the world. Of course, opinions differ over the importance of its role in the Arab Spring. But few would deny that this form of communication defines our time."
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