"Science & religion is about faith. Light supposedly travels at 300000 km/s"
Then how us it everyone has THAT number?
There's a staggering amount of disagreement on who the gods are, if any, their powers, their desires, their revelations, their representatives....
But everyone in the industry buys the experimentsl results of light speed, and moves on from there to whatever their discipline needs.
Imagine the chaos if science was as varied as faith. There would not be 3 vaccines, there'd be thousands...all about as effective as praying away a fever.