Resolving the "Twin Paradox" http://mentock.home.mindspring.com/twins.htm [Broken] I've been trying to follow this unusual explanation to resolve twin paradox, which uses the lorentz relativistic velocity transformation equation to get the speed bob zooms off after Ann at,15/17 C. I can understand up to that point of the explanation and get the same value, however why does it take him 4 years to catch up with Ann at this speed? It's not explained. Maybe it's obvious? Help! (please no explanations involving the relativistic dopler shift equation).