As SpaceX made its final preparations for the sixth launch of its Starship rocket, the company's chief operating officer and president spoke at a financial conference on Friday about various topics, including the future of the massive rocket and the Starlink satellite system. The Starship launch system is about to reach a tipping point, Gwynne Shotwell said, as it moves from an experimental rocket toward operational missions. "We just passed 400 launches on Falcon, and I would not be surprised if we fly 400 Starship launches in the next four years," Shotwell said at the Baron Investment Conference in New York City.