That’s like being a grammar Nazi even when someone writes something otherwise totally clear. And it’s obvious in this case that the magnitude of c was in metri

That’s like being a grammar Nazi even when someone writes something otherwise totally clear. And it’s obvious in this case that the magnitude of c was in metric units. And how do you know if he was even referring to the speed of light by “c”? I could call that a dumb assumption. Because it’s obvious he was using it in a non standard way “magnitude of the speed of light in m/s”.