Several years ago, to learn about machine learning, I wrote an algorithm that learnt what the best links in a Wikipedia article are to click in order to find th

Several years ago, to learn about machine learning, I wrote an algorithm that learnt what the best links in a Wikipedia article are to click in order to find the shortest route between two random articles. The answer was pretty much what you’d expect: top of the article, see also section at the bottom, first paragraph of each section, and then the rest of the article