R&D: Time Travel And Why There Can Only Be One… (COMIC) There can only be one... By Joel Farrelly Updated 10 years ago, December 15, 2014 image by Joel Farrelly Read this: 24 Best Romantic Hacks For Your Relationship, As Explained By 13 People Read this: What It Means To Date A Girl Without A Father Read this: I Hacked Into A Cam Girl’s Computer And What I Found Truly Terrified Me