Bold innovations often take time. That’s why progress must be judged both in relation to the starting point as well as the final destination. For example, in America’s space program, the first successful docking of two orbiting spacecraft, the Gemini VIII capsule and the unmanned Agena target vehicle, took place on March 16, 1966. While this was an important milestone, it was still just an intermediate step in the long journey to land a human being on the moon.