The European Union has made a preliminary decision that TikTok's design features, such as infinite scroll and auto-play, constitute an 'addictive design' that violates EU laws for online safety. This decision may have implications for other social media companies, including Facebook. The EU's Digital Services Act imposes strict requirements on companies offering digital services in Europe, and TikTok is not the only company under investigation. The EU is concerned that these systems may stimulate behavioral addictions in children.