What Bolden is simply acknowledging is that NASA's manned spaceflight program is over. Sure, they're still recruiting and training astronauts, but that's so they can keep the ISS manned until it is retired. The future of manned space flight, including space stations, Moon bases and interplanetary and interstellar travel will belong to private industry. NASA will focus on scientific missions. There's nothing wrong with that - it represents the evolution of the space industry. Billionaires like Elon Musk can build, launch, and return space capsules today. Fifty years ago, Musk's approach would have been highly unlikely, if not completely impossible. The US government will help fund and provide frameworks - think DARPA's development of the Internet and now the 100-year starship project and the humanoid robotics initiative. Along with its own research and development, private industry will take the frameworks and ideas DARPA is developing now and leverage and exploit them in unimagined ways, just as with the Internet.