[EternalVigilance]

You’ve now turned your attention to the obvious physical limitations of cars, rather than to the concept of speed.

If the physical universe, which includes light, had a beginning, would not light have had to accelerate to get to its current speed? Or did it just get to its current speed magically?

[Oceander]

If the physical universe, which includes light, had a beginning, would not light have had to accelerate to get to its current speed? Or did it just get to its current speed magically?

No, it doesn't "need" to accelerate, and no, it's not magical. Light, when emitted, propagates at the speed of light instantly, without any "acceleration." That is part and parcel of quantum physics.

[albionin]

I was showing how the comparison wasn’t valid. The question has to be answered what reason is there to believe that light was ever traveling faster in order to travel 13.7 billion years in 6,000. Light would have to be zipping along at more than 2 million times C and then slam on the brakes at the last minute. That is an extraordinary claim and has to be proved.