The speed of light is the speed of information, including gravity, electromagnetism, and some other things I am not thinking of off the top of my head. For example, if the sun disappeared right now, the lack of gravitational pull would reach Earth at the same time as it blinked out from Earth’s perspective.
Gluons, the Strong Force. Quantum Chromodynamics. As massless particles, Gluons also move at the speed of causality, although popping in and out between Quarks and moving only very short distances.
They call it the speed of light, but the alternate term speed of causality is gaining traction. Maybe because it fits as the “c” in E=mc^2, where the “c” is sometimes referred to as “constant” but actually comes from the latin “celeritas”, which means “speed”.
The term “causality” is a nice fit-all more recent alternative.
The speed of light is the speed of information, including gravity, electromagnetism, and some other things I am not thinking of off the top of my head. For example, if the sun disappeared right now, the lack of gravitational pull would reach Earth at the same time as it blinked out from Earth’s perspective.
Gluons, the Strong Force. Quantum Chromodynamics. As massless particles, Gluons also move at the speed of causality, although popping in and out between Quarks and moving only very short distances.
They call it the speed of light, but the alternate term speed of causality is gaining traction. Maybe because it fits as the “c” in E=mc^2, where the “c” is sometimes referred to as “constant” but actually comes from the latin “celeritas”, which means “speed”.
The term “causality” is a nice fit-all more recent alternative.