While you weren’t looking, computing power accelerated so quickly that a new smartphone is more powerful than a recent supercomputer. Even the original iPhone was more powerful than a Cray supercomputer. Both continue to progress: an iPhone 6 is more powerful than a Cray 2, etc. Another perspective; a couple Nintendos are more powerful than the computers from the Apollo Program. If that was all it took to get to space, it would be colonized by now.