M
mich2
Guest
Just to make a curious approach…The speed of light has been measured by astornomers to have been constant for the last 10 billion years, and probably constant for the last 12 billion years. See Fine Structure Constant. The maximum possible measured variation is very small, less than one in 10,000.
If you want to have a changing speed of light then you have to go back at least 10 billion years and you are only allowed a very small change.
Scientists do not like assuming things, so wherever possible they measure them - that includes checking that constants really are constant. The constancy of the speed of light has been checked by observation, and there is no posibility of a young earth there.
rossum
The farther we observe the universe’s spacetime, the more “red shifted” or time dilated it becomes.
Could there not be a frame of reference “somehwere” in the universe where the value might give the age of the universe in terms of days, relative to our timekeeping?
Andre