A lot of this article might be a matter of opinion, but the discussion on HashMaps seems to be outright false. The author has set up some kind of a double hashi

A lot of this article might be a matter of opinion, but the discussion on HashMaps seems to be outright false. The author has set up some kind of a double hashing strawman, when the actual implementation uses linear probing (which is the only kind of Robin Hood hash table anyone would implement today).