“Already superseded — for some time now, we could safely assume.”
That’s not correct. The hypothesis has been defunct for a while now, but “superceded” implies they have replaced it with something, which they have not. Cosmologists do not currently have any viable model for the development of solar systems. However, you’ll never hear a scientist admit as much when talking to pop sci reporters. Instead they make statements like the man in the article, implying that they actually do have some model that new observations are compatible with, when they do not.
“If it would be of any assistance, it appears to me there is frank admission among theorists that there is more yet to be known/solved. From under heading Current issues by which they mean “unsolved problems” I take it, there is such as; “
That quote you just posted speaking of the problems with “planetessimals” is further demonstration of what I’m talking about. He’s still speaking of the nebular model as if it is still viable, with just a few problems they need to work out. The truth is that the model made predictions and those predictions can now be tested against observed data and we find the predictions failed spectacularly. There aren’t just a few kinks that need to be worked out so the model can be viable, it’s a fundamentally flawed model because it does not represent the underlying processes that governed the formation of stellar systems.
What is really funny to me is that wikipedia cites Hannes Alfven as proposing an explanation for one of the problems with the nebular hypothesis, but neglects to mention that Alfven later came to believe the entire model was unsalvagable and proposed a completely different model of his own.
The all or nothing approach is not working with me. In fact, that has been the basis for what disagreement I've had with your central assertion.
>>>> The truth is that the model made predictions and those predictions can now be tested against observed data and we find the predictions failed spectacularly. <<<<
So says you while entirely ignoring when the "model' as it were does appear to have worked. We are presently standing (or sitting) upon a portion of "it", right about now. That is, unless you have an internet connection that reaches somewhere miles above and beyond the surface of the earth, and are there now, typing, typing, typing...