2 ms·
The speed of light is actually the speed of causality. It just happens that since photons don't have rest mass, they always move at the speed of causality. Gl
by piyh 8y ago
The speed of light is actually the speed of causality. It just happens that since photons don't have rest mass, they always move at the speed of causality.
Gluons are also massless like light, but don't exist on their own. If there's a particle that carries gravity, it would also be massless. You could say light travels at the speed of gravity.
- tomp 8y agoThis only implies that FTL transport would make causality travel a bit faster... but not subvert it (i.e. "travel through time" or "change the past").