Early, Massive Galaxies Running on Empty, ( Galactic Genocide in the 3e third ly millenium) means that equal sized Herbig Haro systems with equal sized bowshock black holes (for plasma and star formation) are missing. later ( Q-FFF Theory)
WHAT COULD BE THE REASON?
According to Q-FFF Theory, Probably that from the black hole splitting bigbang into the first Herbig Haro plamsa creating dual BH systems the size of the new Starspot black holes where too small to form large enough BHs for large enough star forming Herbig Haro systems.
Conclusion, even in a later epoch of the universe these dead galaxies should be found in the same ratios, if we assume that the big bang black hole sizes where not equal spread in size.
The universe formed most of its stars when it was just two or three billion years old, with star-formation dropping ever since.
New observations show that fully half of the most massive galaxies lost all their star-forming material by ~3 billion years of age, and they never got it back.
This great galactic genocide poses an enormous puzzle for astronomers, who are still struggling to understand why.
SOLUTIONs? The most massive galaxies where formed by the most massive Big Bang splitted equalsized (Herbig Haro) Black Holes. ( presenting the first GABHs, see above)
In that 3 billion years, there was galaxy merging which made the gravitating (pressing with dark energy) space structure more complex. ( see above)
As a consequance Spiral Galaxies became a complex bulge growing into an elliptic galaxy. So SPIRALS CAME FIRST !!