From Linda Phillips, Narrogin, Western Australia
The timescape hypothesis, said to explain the apparently increasing rate of expansion of the universe by assuming that the flow of time can vary spatially across the cosmos, raises another interesting question: is time a fixed constant during the life of the universe?
If the speed of time could vary over the age of the universe and were now slowing, this would also make it seem as if the expansion of the universe is accelerating.
