the.com/epistemology
The branch of philosophy obsessed with how you know that you know anything.
means The study of knowledge itself: what counts as justified true belief, and where certainty comes from or collapses.
from From Greek episteme, knowledge, plus logia, study — coined in English around 1850 by Scottish philosopher James Ferrier to name what philosophers had quietly been doing for millennia.
Gettier problemA 1963 paper broke knowledge in three pages.
Ancient rootsPlato chased it without owning the word.
Skeptic testAsks if you can rule out dreaming.