Dear Oliver, friends,
I’m an interested observer of this discussion, and look at it through the lens of physics (oh how I envy chemists that freedom to practice their art without strictures of meta-geometrical topology that afflict extra-terrestrial physics. Imagine if we tried to discuss chemical reactions in varying space curvatures).
For some years now, Oliver and I have collaborated on a Solar System model that aligns with conventional chemistry and physics rather than opposes them. Thus, we have an explosive progenitor in the form of an iron-rich supernova. Isotope sequences put that event at ~4.5GYA. That much is empirically verifiable, and is no longer controversial in the mainstream. What happens next is where physics and consensus depart each other.