well that' finewe computed relationship between the empire strikes back and star wars based on the behavior of these two peopleso we know that these two movies are similar to each other sogiven that mr hipster man liked the empire strikes backwe can say with good confidence that he would also like star warsand we can then recommend that back to him as his top movie recommendation something like the following illustrationyou can see that you end up with very similar results in the endbut we've kind of flipped the whole thing on its head soinstead of focusing the system on relationships between peoplewe're focusing them on relationships between itemsand those relationships are still based on the aggregate behavior of all the people that watch them but fundamentallywe're looking at relationships between items and not relationships between people got it