Stephan's Friday Picks

• How TikTok is reshaping the American cookbook (NYT)
• Hard-core sleepers are obsessing over their sleep stats (WSJ)
• Amazon unveils a 'smarter' Alexa. Its AI has a lot of work to do (Washington Post)
• Why your Starbucks wait is so long (Bloomberg)
• From the archives (2019): Data science and the art of persuasion (HBR)