Why No One Has Measured The Speed Of Light

Video - Why No One Has Measured The Speed Of Light (Oct. 31 2020)

The Earth is billions of years old because we can see light from billions of lightyears away. . . So they say.
What if light is not constant? What if Science got that wrong? You would have to rethink the age of the Earth and also the Bible. What if the book of Genesis was a history book and not a story? Then Young Earth Creation is totally possible.

Isaiah 40:22,
“He sitteth upon the circle of the earth, and the inhabitants thereof are as grasshoppers, he stretcheth out the heavens as a curtain, and spreadeth them out, as a tent to dwell in” (Geneva Bible).

Wouldn't you get time dilation from screeching them out? -YES

Is light a particle, wave or both, maybe more?

Original Source
Why No One Has Measured The Speed Of Light
https://www.youtube.com/watch?v=pTn6Ewhb27k
Physics students learn the speed of light, c, is the same for all inertial observers but no one has ever actually measured it in one direction.