If time passes so much slower near the speed of light... What would happen if somone on Earth made a 10 minute phone call to somone traveling at the speed of light? In this case, the 10 minutes would be relative to a watch from the person on Earth and a watch from the person moving near light speed. So time in this case is not a perception by either person in the given scenario, it is defined by a static object that can only perceive time in one way and only one way. I'm sure this has quite a simple answer; I am new to understanding GR and quantum theories. Since this is a question I came up with myself, I'm hoping a solid answer will help define my sense of logic, propelling me further into such an interesting field of study. Also, I apologize in advance if this topic is misplaced or if similar questions have been recently answered. Thank you!