Previous discussion: https://news.ycombinator.com/item?id=11628080 https://news.ycombinator.com/item?id=11628080. Unfortunately we have to have a base case for

Previous discussion: https://news.ycombinator.com/item?id=11628080 https://news.ycombinator.com/item?id=11628080. Unfortunately we have to have a base case for this recursion, which is to treat this as a duplicate.