How do we know that constants in physical world have not evolved with universe age? Many strange pseudo-scientific theories are based on whatever change is needed to make reality consistent with the theories! One way to examine this point, (My own, not the thrust of paper) is to image distant (hence older) galaxies and look for processes there similar to near ones now, especially when dependent on constants and compare the old and new.
One is details of star
formation! When done, there was a 1000 fold difference! Except
this paper seems to drop the difference to factor of 10!
Paper also points out
the compelling convergence of ground-breaking observations and sophisticated
state-of-the-art simulations which suggest that the remaining differences can
be explained by the turbulent nature of the distant galaxies.
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