‘The entire corpus of published printed material produced in a year, including books, newspapers, and periodicals occupies between 50TB – 200TB, depending on the compression technology. This amount could now easily fit in a refrigerator-size disk array.

So now it is becoming technologically feasible for all recordable information to be accessible by everyone on the planet. The barriers to accessibility are not technical in nature, they are social, legal, and economic.’

Hal Varian, ‘Universal Access to Information’, Communications of the ACM, October 2005, Vol 48(10) at 65.