What Do You Think of Presuppositionalism?

[Jackalope]

Wouldn't it be like asking Plato "How do you KNOW that knowledge is a justified true belief?"

Whereupon Plato would say "It's tautological, bro!".

As to your OP -

But seriously, all branches of epistemology have underlying assumptions / axioms - assumptions that one who favors another branch to tackle an epistemological is not likely to share. To an empiricist (at least to me), presupposition sounds like bullshit, and the reverse is likely true as well. I cannot reasonably assert that they are wrong - though I remain unconvinced that presuppositionalism is anything but circular wishful thinking. I *can* point to empiricism's track record and explain how it has been *useful* - but that comes down to a question of what one values.

I'm tentatively convinced that it's all a matter of what approach one prefers more than anything, and that claims of "truth", particularly capital-T Truth are not entirely justified.