Welcome back to The TechCrunch Exchange, a weekly startups-and-markets newsletter. It’s inspired by what the weekday Exchange column digs into, but free, and made for your weekend reading. Want it in your inbox every Saturday? Sign up here . Our work this week kicked off in China , dug into African startup activity , dealt with China once again , took a very deep dive into the Latin American startup ecosystem and wrapped with a second look at the Robinhood IPO . In other words, not much was really going on at all! You may have been surprised to see Amazon’s stock fall off a cliff Friday. After all, the company posted huge revenue gains to just over $113 billion during the quarter. And AWS, its public cloud business, seemed to tick along nicely. But investors had expected more growth and had priced the Seattle-based e-commerce player accordingly. When Amazon missed revenue expectations and projected Q3 2021 growth of “between 10% and 16% compared with third quarter 2020,” inv