It was a sunny Saturday afternoon, and dozens of people sat in the grass around a backyard stage where aspiring founders of tech startups talked about their ideas. People in the crowd slouched over laptops, vaping and drinking strawberry Frappuccinos. A drone buzzed overhead. Inside the house, investors took pitches in the kitchen.
It looked like Silicon Valley, but it was Liangzhu, a quiet suburb of the southern Chinese city of Hangzhou, which is a hot spot for entrepreneurs and tech talent lured by low rents and proximity to tech companies like…