Now if you try to digitize a page, I tried it, it may take you 3-5 minutes which is larger than the so-called natural limit on facebook. So if we call people to help with digitizing nobody we will come. We know because we tried. Then we made it into a game. We used open cv, a computer vision library, to split it into … which is what we call bite-size tasks. Now this one only takes five seconds.