N-space

For a long time, relative frames of time and space were the domain of astrophysicists. As space travel and gravity manipulation became more common and humans settled on worlds with varying gravitational constants, it became necessary to agree on an absolute reference that would enable business and communication. N-space is, therefore, the layer of four-dimensional space (space and time/gravity), including the gravitational effects of mass, but not including artificial sources of acceleration such as AG, NG, and propulsion.

For the purposes of setting times for interplanetary and interstellar meetings, planet and ships’ clocks are often set to Earth time and therefore run fast in high-gravity/high-acceleration scenarios and slow during low-g/negative-gravity scenarios. Communication between drastically different frames of reference can lead to pauses on the low-g/negative-gravity side of the conversation.