I am very disturbed by the lack of time dilation in the variability of quasar v redshift studies. http://www.arxiv.org/abs/astro-ph/0105073 Title: Time Dilation and Quasar Variability Authors: M.R.S. Hawkins The timescale of quasar variability is widely expected to show the effects of time dilation. In this paper we analyse the Fourier power spectra of a large sample of quasar light curves to look for such an effect. We find that the timescale of quasar variation does not increase with redshift as required by time dilation. Possible explanations of this result all conflict with widely held consensus in the scientific community. I think this is a very serious challenge to modern theory.