People say time moves slower for the observer in no acceleration while time moves faster for the observer moving at a high acceleration.
This is true.
However, people have the mindset that this means time effects individuals differently. Example:
An astronaut leaves his five year old daughter for a round trip in a spaceship traveling the speed of light. He comes back after a year long voyage to find his five year old daughter is now ten years old, while he himself is only 1 year older. This, I believe, is incorrect.
The experience of time on cells and molecules will be equivalent despite what our sense and conception of time tells us. It is only the measurement of time that is changing. In example:
If you have a pair of bombs with a fuse that are exactly identical by the atom and are lit in exactly the same environments, they each will explode at the same exact universal *real*time. To each person recording, their records will have varying answers due to their references in space. The recorders will have drastically different answers but all are true. In the reference of the universe, which we can see through our thoughts, time will always be a constant linear measurement. . .
Last paragraph sloppy but I'm hungry.