WoW Forever Can't Be Fixed
After more than 20 years, World of Warcraft’s servers still struggle, and adding more servers can’t fix it. Through one PvP fight from 2006, we see what the game’s client and server each do, then why the work of a packed crowd grows at least with the square of its size, how realms, instances, shards, layers, and batching spread the load, and why the server’s processor is still the limit.