Musical.ly hit a wall. Only after it was purchased by Bytedance, rebranded as TikTok, and Bytedance poured their magical, cultural-agnostic AI sauce (and ad dollars) did TikTok truly take off. By all indications, this AI magic was wholly created in China and retrofitted onto TikTok.
Music.ly blew up in 2015 and was in the top app charts for a year before Bytedance bought them. They were at 133 million registered users and 40 million MAU in 2016. What was the wall they hit?
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