books to learn more about the topic: 1. "Epistemology: A Very Short Introduction" by Jennifer Nagel 2. "What is This Thing Called Knowledge?" by Duncan Pritchard 3. "Epistemology: The Classic Readings" edited by David E. Cooper 4. "An Introduction to the Theory of Knowledge" by Noah Lemos 5. "The Theory of Knowledge: A Thematic Introduction" by Paul K. Moser
I think this is a pretty good introduction to something like epistemology, and the books you recommended are good. Though, like learning languages (Latin in my case), there is the kind of natural method in learning philosophy and extensively its domains like epistemology. Which, I find pretty productive and not to say intuitive on one's involvement with primary sources. We acquire understanding on the get go with this approach, a sorta sink or swim. And theories on knowledge would seem rather suitable to this, lol. A living justification for our own comprehension. Enjoyed the video!
I hate the "brain in a vat" discussion! It can't be proved that you're not a brain in a vat, but it doesn't matter anyway because it's the closest form of reality that we could ever experience if we were brains in vats. I guess the takeaway would be that the reality we currently percieve is only part of the world and that our "truths" are based mostly on incomplete information (and thus many of our "truths" are actually falsehoods)? I guess it makes a good intro philosophy question to introduce a solipsism with a bit of intellectual humility, but it seems like a discussion that never really makes any progress.