LCDM is a testable model which exists in science .. However I get that you take it as being a mind independent 'thing' (a claim which you cannot support with an objective test/evidence).
That you cannot, or will not, 'try it on' as a testable model, is your (unscientific) choice.
The problem is that it's a model that has been "tested" and it's failed so many of those so called "tests" that I've lost count. Distant galaxies are too large and "mature" for the LCDM model, quasars are way too large, dark matter has failed every "test" to date, etc. At some point one has to allow "tests" to falsify models too, but alas that's never the case with the LCDM model.
Re underlined:
No .. the only 'claim' I made as far as the notion that reality might be truly mind independent, is that 'I don't know'. (In other words, I never actually entirely ruled out 'the existence of some truly mind independent reality'). The notion itself is actually evidenced as mind model too, of course - ie: a belief.
I think you're missing my point. Essentially your entire belief system, including your belief in the LCDM model, evolutionary theory (I assume you support it), archeology as we understand it, etc, all *require* the existence of laws of physics which predate life on Earth, and "minds" as we think of them.
Admittedly, creationism assumes that a "mind" was the responsible "creator" of the universe itself, but with that one exemption, all other scientific models depend on the existence of laws of physics which predate 'mind'.
The rest of what I've highlighted in this thread is abundantly supported with objective evidence, whereas the notion of the mind independence of reality, is entirely unsupported with even an objective test.
I don't know how anyone can "hold belief" in something like 'dark energy' or inflation, and claim to 'test' such things without *assuming* the existence of a mind independent reality, and laws of physics which predate mind. How could one "test" anything that requires one to "assume" a multi billion year process unfolding over time without embracing a mind independent reality?
FYI, I'm just having a hard time wrapping my head around the fact that you seem to hold belief in a universe that predates the existence of minds as we think of them, yet you fail to embrace the concept of a objective set of physical laws that would be required to "test" your favored cosmology model. It just "seems" self conflicted. Then gain, it's possible I simply don't comprehend your beliefs all that well. Sorry, I wasn't trying to be difficult, I was simply trying to understand your position, and admittedly, I'm struggling.