X has implemented a subtle but significant algorithm tweak to boost the visibility of posts from users' "mutuals"—people they follow who follow them back. Head of product Nikita Bier announced the change on Monday, explaining that the previous algorithm lacked this data, causing replies to feel like a "battleground" with unfamiliar users. The adjustment aims to make the platform feel more like a community, helping "clusters form around interests more easily," as Bier noted. While the change may not drastically overhaul the user experience, it could shift X away from being a torrent of disparate voices.