Thanks to Jos Leys for his article
My email comment to his article is:-
Although for me it has always been the holy grail even though it lacks the amazing beauty of the nth degree mandelbulbs. It exhibits other properties I would expect to find. 1 axis of symmetry. But most of all is the unique yet similar alternatives. As a model exhibiting complexity it demonstrates both big bang universe, and ever evolving universe which all experience depending on the technique of observation. This is particularly clear in the 4d model although observable in the 3d model.