Cosmic Isotropy = Platonic Ideal.

And we already have too much Platonism in theoretical physics. At best one can say, on the basis of the CMB and matter distributions, is that there is a statistical degree of isotropy if you apply coarse-graining, i.e., look at our little corner of the Universe through coke bottle glasses.

As de Vaucouleurs argued back in 1970 (Science), the main argument for ideal isotropy is that it keeps the mathematical modeling more manageable. In spite of the ubiquitous anisotropy that we observe on all lower scales of the cosmos, arguments for a turnover to isotropy has always been justified at the largest observable scales where our empirical evidence becomes shaky.

Also assumed is the unjustified theoretical prejudice that any decrease in anisotropy is continued beyond our little (possibly infinitessimal) Hubble Bubble. It ain’t necessarily so!