Hello @TeamYouTube , I would like to know, why are not the thumbnails of the videos on my channel? What happens is that all my videos had thumbnails, and now they are no longer seen.pic.twitter.com/10DKNkIopT
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A B testing is a fundamental part of web design, websites run man experiments like this to see their success, this is partially how websites end up addicting, they see what keeps users on the sites longest, etc https://en.wikipedia.org/wiki/A/B_testing …
Yes, but does Zuckerberg's platform produce income for users? Are people making a living by looking at Facebook?
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