In this podcast, computer scientist Luis Von Ahn describes how tapping into the countless hours people spend playing games can help solve complex problems that stump computers. Podcast produced by David Levin. Inteview by Josh Seftel. NOVA is produced by WGBH in Boston. Funding for NOVA is provided by ExxonMobil, David H. Koch, the Howard Hughes Medical Institute, the Corporation for Public Broadcasting, and public television viewers. Major funding for NOVA scienceNOW is provided by the National Science Foundation and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation. This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation. For more fun science stories, visit our website at pbs.org/nova/sciencenow