Ask what Korea is talking about.

Asian markets plunged on Oct. 30 after disappointing U.S. big tech earnings and concerns over AI investment returns triggered a global tech rout. Korea's KOSPI fell 3.48% to close at 5,730.74, while the KOSDAQ lost 3.06%, according to KBS World. Yonhap reported Seoul shares dipped over 3%, and the Korea Times noted losses exceeded 5% late Friday morning. Business Korea attributed the drop to Alphabet's plunge and Fed tightening concerns. Japan's Nikkei fell 2%, and Taiwan also declined, per Maeil Business Newspaper. Korean media emphasize that the selloff centered on semiconductor and AI-related stocks like Samsung Electronics and SK hynix, reflecting worries about the sustainability of the AI boom.