Quote:
Originally Posted by Chris T
True, although I'm sure you don't mean to gloss over the fact that in such calculations, certain assumptions are made because aspects of the calculation are not measurable in any sense. The speed of light, for example. There is absolutely no way, short of inventing a working TARDIS, of establishing that the speed of light has always been constant. If it has not, then an awful lot of deeply cherished theories about the age and state of the universe are worthless.
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Well yes, if it turns out universal constants change based on time or space. (light entering an autobahn), then my education is pretty much screwed and physics goes back to the drawing board.
Fairly certain the speed of light has no bearing on evolution however, except possibly increasing or decreasing the probability of skin cancer.