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@Double_R
Objective facts are foundational.No, they're not. We're talking now about epistemology, which literally translates into "the study of knowledge". An objective fact in this context has to be accepted as such, which requires a mental process to get to that point. That process is what epistemology is, that's what we're discussing.In other words, foundational premises are the very ground we stand on before we can accept anything as an objective fact. So no, objective facts are not foundational.
Epistemology is not a process to determine what is subjective or objective. It is a study of what we know or don’t know.
Objective facts are built on facts or conditions as perceived without distortion by personal feelings, prejudices, ...and therefore foundational.