I know what it is because I saw/skimmed a related article the other day: https://news.ycombinator.com/item?id=38850202 https://news.ycombinator.com/item?id=3885

I know what it is because I saw/skimmed a related article the other day: https://news.ycombinator.com/item?id=38850202 https://news.ycombinator.com/item?id=38850202 ...but a good part of what this article is discussing is why you don't know what it is; why it hasn't been in textbooks for 40+ years: > if it’s so effective, and so simple, and so closely related to an algorithm that’s been around forever, why has nobody discovered it already?