Generally taken by who? I can conceive of it quite easily. And please explain rationally why scientific conceivability is an essential foundation for metaphysical reality rather than just being one aspect of a larger construct?
The lack of evidence supporting the truth in those creation mythologies, for instance. There’s better evidence supporting contrarian views. How do you contend with this issue, other than by faith?
Metaphysical reality pertaining to what? The creation mythologies?