Thanks. I can't help thinking that it hints towards the La Sage limited gravity idea. The very fact that at extremes (large and small) the Newton laws work differently is a good indication that gravity (and other forces) operate with 'limits' based on a certain scale. In the case of galaxies it happens to be smaller that the total size of galaxy thus causing the observed motions of stars.
However, the previous issue was about an exception to this 'adjusted' law with ellipticals not behaving like what we would have expected using La Sage/Meta model gravity. It may just be that because of their 'violent' nature (collitions, mergers etc.) that stars inside there galaxies do not behave they way we expect them to. But then, why are it all ellipticals (assumption)?
This remain an interesting topic to me
Rudolf
