These days algorithms have taken on an almost godlike power—they’re up in the (data) clouds, watching everything, passing judgment and leaving us mere mortals with no way to appeal or to even know when these mathematical deities have intervened.

That’s the argument made by Cathy O'Neil in her book “Weapons of Math Destruction: How Big Data Increases Inequality and Threatens Democracy.” If algorithms are gods, she’s one of the high priests, as a data scientist and mathematician.

These days O'Neil is trying to challenge this divine narrative of Big Data and point out how fallible the mathematical frameworks around us are—whether in financial systems, in social networks or in education. As she writes, “many of these models encoded human prejudice, misunderstanding and bias into the software systems that increasingly manage our lives.”

EdSurge connected with O'Neil to hear how her behind-the-scenes view of the 2008 financial crisis led her to try to push for tools that can audit Facebook, Google, and other algorithm-fueled systems now asserting themselves in human affairs.