FORTUNE - Mark Zuckerberg said that he failed to anticipate the way people share videos on social media platforms and missed the trend of A.I.-driven content curation that ushered in the success of TikTok. Zuckerberg said he didn't jump on the trend of video content sharing at the start because he felt it was just going to be "a shorter version of YouTube." To compete with TikTok, Meta now plans to bring in more content beyond a user's friends or the people they follow, and tailor their feeds using A.I.