The speed of light, stars, and YEC?

[popeyespappy]

You've correctly ascertained that it is impossible. The laws of physics are demonsterably and demonstratably unchanging and hold true everywhere we see. The speed of light is about 300,000 kilometers (186,000 miles) per second and can and will never be anything else - same as gravity, thermodynamics, and numerous other things that creationists otherwise ignore.
The creationist arguement of C (the speed of light) being able to change over time is disengenuous because there is no evidence that any of our laws of physics has or even can change over time. At best, they can argue that our understanding and ability to express and predict using physics has changed but that doesn't help their arguements at all.

Variable speed of light (VSL) is supported by the same kind of evidence that supports inflation. It is an alternative explanation for the observations that led to the introduction of inflation. The same goes for Modified Newtonian Dynamics (MND). It is an alternative explanation for observations that most cosmologists attribute to Dark Matter. At this point both VSL and MND are fringe theories without a large following among cosmologists. But so was the Big Bang model in the middle part of the 20th century.

We don’t currently have a theory of everything. We don’t KNOW if the correct answer is inflation, VSL along with MND or some other theory. Whether you like inflation or VSL as an explanation for current observations it doesn’t make a difference. Both theories require a point in time in the history of our universe in which the laws of physics did not operate the same as they appear to today. Either we have inflation which has matter with mass moving faster than light, or a speed of light which has not always been constant.

Unfortunately for the YEC crowd, VSL as proposed by credible cosmologists does not support an Earth much younger than the age science currently assigns to it. VSL still requires an old universe and says nothing about the age of Earth. In fact it requires an old Earth to be viable because without an old Earth it stands in direction to other observations. Like the fossil and geologic record or radiocarbon decay when someone tries to tout these things as support for a young Earth it is a misrepresentation or distortion of the facts.