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.
posted on 09/01/2012 10:13:29 PM PDT
(TINSTAAFL - Mother Nature Abhors a Free Lunch almost as much as She Abhors a Vacuum)
Or, perhaps, a shorter period of time than is discernible by human means?
posted on 09/01/2012 10:30:22 PM PDT
(The saving of America starts the day Christians stop supporting what they say they hate.)
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