Oh I see.. no, you are not mistaken. The twins do represent actual, honest to goodness, bonafide human beings, one sitting on a spaceship and one staying on Earth.mabus":heg6pvbv said:that the twins represent actual twins of human size, and not atoms, am I mistaken?
But of course, the twins are made of atoms...
All I am saying here is that it doesn't matter whether you use atomic clocks, or human beings sitting next to atomic clocks. Atomic clocks measure the passage of time, and the passage of time causes human beings to get older.
To dryson: Perception of time is a different matter entirely. Time can seem to take forever to pass, or it can pass in a flash, but after 1 day you will still be 1 day older. A second always lasts a second, and you get older by the second.