AUSTIN, TX - MARCH 10:  David Carr, Columnist/Reporter The New York Times (L) and Eli Pariser CEO, Upworthy speak onstage at "Do Algorithms Dream of Viral Content?" during the 2014 SXSW Music, Film + Interactive Festival at Austin Convention Center on March 10, 2014 in Austin, Texas.  (Photo by Jon Shapley/Getty Images for SXSW)