We didn't know the importance of home computers before the Internet. We had them mostly for fun, then the Internet came along and was enabled by all the PCs out there.

Testing leads to failure, and failure leads to understanding.

We'll go back to the moon by not learning anything new.

Space travel is the only technology that is more dangerous and more expensive now than it was in its first year. Fifty years after Yuri Gagarin, the space shuttle ended up being more dangerous and more expensive to fly than those first throwaway rockets, even though large portions of it were reusable. It's absurd.

The photographs of space taken by our astronauts have been published all over the place. But the eye is a much more dynamic mechanism than any camera or pictures. It's a more exciting view in person than looking at the photographs. Of course, I personally am sick and tired of hearing people talk like that: I want to see it myself!

By 1973, we had a space station, the Skylab, and we had multiple probes going up to planets. So, all this wonderful stuff happened in 10 to 15 years. About that time, there should have been enormous initiatives to make it affordable for people to fly in space, not just a handful of trained NASA astronauts and Russian cosmonauts.