A beam of light emitted from a star 13 billion years ago traveling 13 billion lightyears experiences no passage of time or space Londo 111
that "no "space" comment is true, and profound, as the forward dimension has shrunk to 0. so, riding a light beam like Einstein imagined would be an out of this world experience. and fit into the picture of the universe expanding out from the big bang moment, point in time into the endless time.
time is fundamental, it must have always existed, does not move. we do. for a while.