Synchronization , along with the related concept of simultaneity , has to receive careful definition in the framework of general relativity theory .
Many of the assumptions inherent in classical mechanics and classical accounts of space and time had to be removed .
Synchronization , along with the related concept of simultaneity , has to receive careful definition in the framework of general relativity theory , because many of the assumptions inherent in classical mechanics and classical accounts of space and time had to be removed .