Internet users are exposed to large volumes of harmful and misleading content which can deceive, damage mental health, normalise extremist views, undermine democracy, and fuel violence. We are concerned by the evidence that recommendation algorithms—integral to the advertisement- and engagement-driven business models of social media companies—play a role in this. Young people are particularly vulnerable to these harms, and 53 those born today will never have known a world without AI—we plan to explore in detail the impact the online world has on their developing brains in our future work. (Conclusion, Paragraph 26)