[Hong Kong stocks opened lower and fell, AI application sector declined] According to DeepFlow TechFlow, on October 22, Hong Kong stocks opened lower and fell, with the Hang Seng Index down 2% and the Hang Seng Tech Index down 3.1%. The AI application sector declined, MINIMAX-W (00100.HK) dropped 5.4%, briefly falling below its issue price during trading; Alibaba (09988.HK) and SenseTime (02513.HK) fell more than 5%. (Jin10)