Megan Garcia did not set out to become one of the most consequential figures in the fight to regulate artificial intelligence. A lawyer and mother of three, Garcia is the kind of parent who notices things. When her eldest child, Sewell, turned 14, he quit the basketball team, retreated to his bedroom and grew quiet in disconcerting ways. Instead of ignoring the changes, she restricted his screen time and took his phone away as punishment; but even that was not enough.

There is a real danger of AI companies replicating the toxic practices of social media. It is time for policymakers to respond

Megan Garcia did not set out to become one of the most consequential figures in the fight to regulate artificial intelligence. A lawyer and mother of three, Garcia is the kind of…