In a 2018 email, then-CEO Jack Dorsey responded to an employee question asking whether Twitter “should serve personal social network (conversation among acquaintances)” in addition to facilitating public conversations. Dorsey responded, “Yes, but we have to pick one to optimize for. There’s already a service out there that does personal network well, so let’s focus on our strength of interest network.” The FTC is trying to bolster its argument that Meta competes in a distinct market for personal social networking services, where users go to connect with friends and family.