From our devices, our checkins, our emails and interactions - even our bodies - we emanate data.  A lot of it.  Get your hands on enough of it and let a machine learn from it , dispensing with theories or preconceived notions, and thats what Big Data is.    

It's why Big Data is different from Business Intelligence.  It's why Big Data is different than the last IT buzzword and why it has staying power.  Because the data is not going away.  It's only going to grow and move faster.  We needed new tools, new thinking and new velocity to utilize this raw resource from the internet to gain insight, make customers happy, avoid mistakes, beat the competition, discover new medicine and make government work better.  So we got Big Data.  

Long live Big Data !