Luis von Ahn, an assistant professor in the Computer Science Department at Carnegie Mellon University, speaks at Google. Luis talks about his research on utilizing the abilities of humans to solve problems which are difficult for computers by creating games for people to play.
Over 9 Billion human hours of solitaire were played in 2003. It took 7 million human hours to build the entire Empire State Building. It turns out it took 20 million human hours to build the entire Panama canal. I want to show how we can make good use of these wasted human cycles and that is what I mean by human computation.
-Luis von Ahn