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How the Secret Algorithms Behind Social Media Actually Work
Key Excerpts from Article on Website of Time
Posted: August 23rd, 2025
https://time.com/7308120/secret-algorithms-behind-social-med...
A series of corporate leaks over the past few years provides a remarkable window in the hidden engines powering social media. In January 2021, a few Facebook employees posted an article on the company’s engineering blog purporting to explain the news feed algorithm that determines which of the countless posts available each user will see and the order in which they will see them. Eight months later ... a Facebook product manager turned whistleblower snuck over ten thousand pages of documents and internal messages out of Facebook headquarters. She leaked these to a handful of media outlets. Internal studies documented Instagram’s harmful impact on the mental health of vulnerable teen girls. A secret whitelist program exempted VIP users from the moderation system the rest of us face. It turns out Facebook engineers have assigned a point value to each type of engagement users can perform on a post (liking, commenting, resharing, etc.). For each post you could be shown, these point values are multiplied by the probability that the algorithm thinks you’ll perform that form of engagement. These multiplied pairs of numbers are added up, and the total is the post’s personalized score for you. Facebook, TikTok, and Twitter all run on essentially the same simple math formula. Once we start clicking the social media equivalent of junk food, we’re going to be served up a lot more of it—which makes it harder to resist. It’s a vicious cycle
Note: Read our latest Substack focused on a social media platform that is harnessing technology as a listening tool for the radical purpose of bringing people together across differences. For more along these lines, read our concise summaries of news articles on Big Tech and media manipulation.
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