From my email inbox today: “It is estimated 1 exabyte (EB) of data is created on the Internet every day and contains the equivalent amount of information as ~250 million DVDs. The volume of government data the NSA (National Security Agency) or FBI (Federal Bureau of Investigation) have on people altogether is sometimes described by data scientists in terms of Yottabytes (or 10^6 EBs). In the future, Brontobytes (or 10^3 Yottabytes) are expected to describe the volume of sensor data created by devices and machines.”