Like Richard Rorty, I'm skeptical of any grand theory of epistemology. We believe things when we find the arguments/evidence persuasive. There's not much more that can be said.
Let's take an example from yesterday's media:
One expert is calling for a second round of stimulus checks to offset the financial strife experienced by struggling American during the coronavirus pandemic.
Forget about the stimulus checks, I'm interested in the question of whether Americans are "struggling". Is that true?
(Yes, I know that I'm a really bad person for even asking that question. Tens of millions