(March 20, 2019 at 9:12 pm)LadyForCamus Wrote: When you eliminate any and all empirical and/or testable things...well...I'm not sure what's left, lol.
The fact that you're not sure what's left tells me that you haven't studied the field much.
Traditionally, metaphysical issues are studied by philosophy, and when they relate to God, by theology. If you rule them both out a priori then you can't study the issue.
Some things are known through logic. Then you can hold them up to the real world and see if they're compatible. But it may be that no certainty is possible.