[Aric2000]

You have assumed a constant speed of light. You also appear to be saying speed=distance.

Uhh, yes, he did, The speed of light is constant in a vacuum, in other words in space the speed of light is a constant. Therefore to use it as a measure of distance is indeed not only practicle, but necessary. I sure wouldn;t want to say the distance to Alpha Centauri is 20 trillion, some odd billion, some odd million, some odd thousand, some odd hundreds of miles away. Does not go fleeting off the tongue if you know what I mean.

In the laboratory, they have been able to speed up and slow down light speed. Even stop it.

Yes, VERY cool experiments, we may even get lightspeed computers out of it, or possibly Infiniband. Very cool technology, but has NOTHING to do with the speed of light in the vacuum of space.

There is also some evidence that the speed of light is in fact slowing and it has been measured to have slowed down over time. Light year is a speed, not a distance.

The evidence is wrong, it has been well refuted and set aside by science LONG ago. The speed of light is constant, and remains constant.

If the speed of light actually changed at all over this period, I assure you, you would have noticed, PHYSICALLY noticed.

[DittoJed2]

The evidence is wrong, it has been well refuted and set aside by science LONG ago. The speed of light is constant, and remains constant.

The evidence is disputed, but is not wrong. Uniformity says that it is wrong, but creationists do not believe in uniformity.