From the BBC World Service: Little luxuries can become routine during tougher economic times. The newest iteration of the “lipstick effect,” the phenomenon is called "little treat culture" on TikTok, where videos using the hashtag have grown by 75% globally over the past year. This morning, we'll delve into the business model of treat-onomics. But first, TSMC confirms plans to make AI semiconductors in southern Japan, and gig workers in India are planning a nationwide strike.