- #1

Frank Castle

- 580

- 21

Finally, unlike in classical mechanics where the spatial line element is frame independent, it is a combination of temporal a spatial coordinates that form a frame independent quantity, suggesting that the "natural" geometry is four dimensional, forming a continuum called "spacetime", with a length in this four dimensional spacetime being determined by this new combination of spatial and temporal coordinates.

Is this in any way a correct motivation for considering spacetime instead of space and time as separate entities?