Netflix used Big Data to determine that 27 million subscribers would like the series House of Cards, starring Kevin Spacey. Yahoo used Big Data to require employees to come into the office rather than working from home. Google is using Big Data to develop self-driving cars. But, what is Big Data? Is it more than a powerful tool? Could it change the way people think? We hear how Netflix developed House of Cards and look at the risks as well as the benefits of a constantly expanding avalanche of information… about us.