Exabyte

Altogether, the human brain is estimated to hold something in the order of 200 exabytes of information.

North American cloud traffic in 2015 measured 1.891 exabytes per year, in the Asia Pacific 908 exabytes per year, […]

In 2010, Google's CEO, Eric Schmidt, stated: “There were 5 Exabytes of information created between the dawn of civilization through 2003, but that much information is now created every 2 days” (Schmidt, 2010). Schmidt's forecast, indeed, proved to be an underestimation.