Okay so I finally completed Unit 6, and it was difficult. It seems like the advancement to PageRank was a very big jump. Maybe that’s why people at Google (and other search engine like DuckDuckGo) have to be really really smart. I didn’t understand what was the damping function was for, and even after watching the videos quite a few times I still did not get it. But I guess that is actually more Math and Computer Science, although one can argue that both fields are intertwined quite closely! I sure hope you understand it! Check out Wikipedia’s entry on Page Rank for more information!