WorldCanvass tackles informatics—also known as big data—on its final program of the 2015-2016 season. Guests from the diverse fields of computer science, medicine, sociology, public health, and geographical and sustainability sciences will discuss the proliferation of big data and their attempts to both understand and utilize this massive and, in many ways, untamed digital resource. “Big Data: Big Brother or Big Sister?” is the topic at 5 p.m. on Tuesday, April 19, at FilmScene. WorldCanvass is free and open to the public.