Then I suppose this means you're willing to accept the fact that $identifiers are $identifiers and not meant to be %variables?

(Anyway, I still disbelieve that any constant exists in the universe. Just as the speed of light was thought to be constant simply because our atmosphere made it difficult to see otherwise, all constants you try and present are directly effected by some other variable, whether we're aware of it yet or not... except for perhaps Absolute Zero, which is more of a concept than a constant. To acheive Absolute Zero temperature, all atoms in the universe must cool to the point where not a single sub-atomic particle is in motion relative to any other sub-atomic particle anywhere else in the universe. Absolute Zero is an infinitesimal, and acheiving it is much like trying to exceed the speed of light (or rather, the speed of the universe... which is the speed of the fastest moving "xray") which is also an infinite, because there is no object outside the universe to measure this speed. Just wait until the universe goes on to collapse again... things will get a mite hot, and all science out the window. This will happen when Absolute Zero and The Speed Of Light equal, for a brief moment. We can only speculate that there will be attractive forces at work to bring things back together. Consider 'Reverse Entropy'.

)
- Raccoon