Juvenissun, obviously you have not seen Dad's non-stop use of the epistemological atomic bomb. He rolls right over Hume without a glance back.
So, I'm curious, why you would label Sandwiches request "like a question from a school kid".
I mean, it is hardly a question from a school kid. This is some pretty heavy, albeit intro epistemology.
I generally find your "dismissiveness" annoying and I'm willing to bet you won't engage in a substantive manner on this topic any more than you will on most geology topics.
Dad is playing in a part of the pool he doesn't even seem to understand, despite having it explained to him on numerous occasions. I've cited the various sources for Hume's writing and discussions of empiricism as well as the limits of empiricism.
Again, this isn't "kid stuff". Even if you, like most of us, were introduced to it when you were in undergrad in your philosophy classes, it is still pretty mind-bending and complex and doesn't reveal a clear answer.
It's effectively an "insoluble" problem in empiricism and that branch of epistemology.