可引用的發言段落Citable transcript turn#432077講者:Speaker: Tyler CowenIt would take several decades, at least. Right? We have 30, 40 years of BlackBerry, and people are on social media less. Is that a better outcome? Do we have better discourse, more empathy? 逐字稿導覽Transcript navigation查看前後文View context分享此段Share turn來源逐字稿Source record2020-09-25 Conversation with Tyler Cowen