{"id":"news-feed-unfollow-purges-via-linear-scan","text":"`_remove_author_from_cache` does a full linear scan and rebuild of the follower's deque to purge the unfollowed author's posts","truth_value":"IN","source":"entries/2026/06/05/news-feed-system-news_feed.md","source_url":"","source_hash":"","justifications":[],"dependents":["brute-force-acceptable-at-pedagogical-scale"],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"news-feed-unfollow-purges-via-linear-scan","truth_value":"IN","reason":"premise"}]}}