Scott M. Smith 

I was intrigued by the idea of becoming an astronaut. Unfortunately I’ve known for a long time that there are many medical constraints to being an astronaut and having very, very good vision is one of them. And as my glasses give away, I do not have very, very good vision. So, had I wanted to be an astronaut, that went away quickly. But to be honest, it takes a very certain special kind of individual to put up with the rigors of space flight. And if I’m fully honest, I’m not sure I have the right stuff.