About 100 million Americans now use TikTok, including two-thirds of teens. “We’re not talking about a dance app,” Abbie Richards, a researcher who studies disinformation on TikTok, tells the Washington Post. “We’re talking about a platform that’s shaping how a whole generation is learning to perceive the world.”

Reset checks in with Washington Post tech reporter Drew Harwell to examine the spectacular rise of the world’s favorite video-sharing platform and what comes next for TikTok and its users.