JD: Yeah; more relevance means less time on the service, and that's perfectly fine, because we want to make sure that, like, you're coming to Twitter, and you see something immediately that you learn from and that you push.
잭: 네, 사회적 타당성이 높아지면 서비스 이용시간이 줄겠죠. 정말 그래도 괜찮아요. 왜냐하면 트위터를 이용할 때 누르는 즉시 뭔가를  배워갔으면 좋겠어요.