A discussion of “Big Data,” a term that refers to the collection of very large quantities of digital information, and the use of powerful analytic tools to detect trends and patterns that would otherwise be invisible. It has many potential uses, such as helping us to better visualize economic trends, climate trends, and demographic trends. But it also carries serious risks, such as loss of privacy and vulnerability to manipulation. The guests are Dave Nielsen, Technical Program Manager in the Big Data Technologies group at Intel Corporation, and Bhairav Mehta, a Senior Data Scientist and Technical Program Manager at Apple, where he specializes in data analytics.