On the Synchronization of Clocks

This essay originated from a debate with some anti-Einsteinians about synchronization of clocks. At modern times physicists regard this kind of ponderings "philosophical" and something negative. The discussion however led to the question whether it is possible to synchronize clocks in Lorentz invariant manner. The answer to this question is positive quite generally in TGD - put the clocks at hyperboloid of light-cone- and leads to a vision about synchronization in terms of quantum entanglement in a tensor network defined by a tessellation of hyperboloid of M 4 .