How will the new US export controls for AI affect global supply chains?

The U.S. government has issued new restrictions on advanced AI chips and technology. How will it affect global supply chains in the chip industry? How should China respond to Washington's moves? (00:45) U.S. TikTok users are flocking to another Chinese social media app, RedNote, over the potential TikTok ban. Why is this happening? (18:37)