"A social network such as Reddit, for instance, is sometimes called a hivemind. For good reason: Every large and active community on Reddit (called a subreddit) comes pretty close to being a Social AI. Each subreddit is a mix of humans and computers, which can achieve certain limited goals more intelligently than any one human can achieve alone. Namely, subreddits are social-computational machines for generating and curating content optimized for specific subcultural niches."