Do I have to take my wife? Why does it have to be two people? Give me an open stream to the Internet (lag would be fun) and a lot of Mountain Dew and I am good to go.
Of course, no one really knows what would happen to two people locked in an RV-sized space capsule leaving Earth for 501 days; it's never been tried.
Michael Horoda wrote on the story about the announcement:
If this guy and his wife want to do this for humanity, then graciously accept the offer. These people obviously are mature, thinking individuals. If they are successful then they will have gone where no man, woman or married couple has gone before. And believe me, if they wrote a book about handling marriage issues after their successful return, I would buy it because they would really know what they are talking about. Contrast that to the self-annointed relationship experts from Mars and Venus.