dasmiller
Just the right amount of cowbell
I'm just pointing out that stars have some very unusual behaviors that might have something to do with the interstellar medium they happen to be traversing at the moment. Passing through a more dense (or less dense) regions of interstellar space may in fact generate unusual solar wind patterns and unusual light emission patterns as well.
So, would EU/PC predict that extragalactic stars should be dimmer than we'd expect from their mass? And that stars within nebulae would be brighter than we'd expect based on mass? (or vice-versa, I suppose) This would seem to be an easily testable prediction.
I'd think that, since the interstellar medium doesn't generally come within many AU of the star, the interstellar medium would have a very limited impact on the star's behavior. Regardless of PC vs. conventional cosmology.