Theodore listened. "Without a means to return to your own time, a decade turner is only interesting in theory," he pointed out. "At least as far as humans go. The complications for the individual travelling back so far in time would be enormous. Not only will you have to live your life avoiding yourself, but you also has to leave your family and friends behind for a decade. When you return, they will not have changed, but a decade does change you, in age and experiences."
"Second, if you do not suspend your life entirely for a decade, which few would be able to do, you'll return to two lives. The one you had, in which your spouse is a decade younger and without a decade's worth of experiences, and the one you created for yourself while gone. Which do you choose? How do you explain to the family left behind? Even a scientist could not be asked to make such a sacrifice."
"As interesting as the concept of time is, how will this be a project that can be used to further knowledge about time if we cannot send a scientist to explore it?"