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The algorithm promotes what you want to see. If you're not interested in silly or stupid things, you can nudge the algorithm towards content you find engaging. It's kinda "one-size-fits-all", but yeah, the average user is looking for entertainment you'd probably classify as 'silly'.

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Can you really train it to be healthier? It uses implicit signals to figure out what you like watching.

That's like having a machine that detects which foods you find tastiest, and starts serving you only those things.

Probably not. Don’t know much about TikTok, but if I click a link on YouTube, barely watching the video, my recommendations will be spammed with similar filth forever - and it seems to be pushing certain channels or types of videos.

Educated guess, as I’ve no idea how these things work - videos I’m more likely to share will be recommended, bringing controversial content to the top

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