User blog comment:ProfessorMcG/Time Travel. Is it possible?/@comment-2020851-20100812211657

I read a book where in the future they would have ships that can go fast enough to travel between worlds. To the person on the ship, the voyage would only take a few weeks or a month depending on how far they traveled. But to the world outside the ship 30, 40, or 50 years would go by. Although, this book was written over 25 years ago.