::::::::::I said nothing to do with light 'a priori'. Since light is massless (for all intents and purposes anyway) it has again everything to do with c and the article currently accurately reflects that accurately. It is simply not true that the "speed of light" is whatever speed photons travel at even if they do have mass, as CosineKitty claimed. (or the starter of this thread for that matter) Anybody who thinks that has been confused by the unfortunate historical name.