In another thread, born2perform asked an interesting question. I would like to re-ask that question in the most concise way I know how. I stand ,at rest, shoulder-to-shoulder with other observers in an infinitely long line.Our wristwatches are all syncronized. My line faces another line of observers, also at rest, wristwatches syncronized. So everybody is at rest and and all wristwatches are syncronized. My group simultaneously begins moving to the right with some velocity. I look the wristwatches of the people who pass by me. How will the time on their wristwatches compare to the time on my wristwatch?