The record for the fastest company to reach $1 billion in revenue was broken by Zhang Yiming's "Toutiao," which took four years. Two years later, this record was broken by another entrepreneur born in the 1980s, Huang Zheng, whose Pinduoduo reached $1.9 billion in revenue after only three years. However, this record has now been broken by AI, with several leading AI companies achieving this milestone within one to two years. In which sector do you think the next company to reach $1 billion in revenue within a year will be?