Wow. What a myopic view. You need to know your history so it isn't repeated, and the reason for the Gettysburg Address, and it's continuing legacy in our country, is very appropriate to our current situation.
Knowing the significance of the Gettysburg Address and remembering who read it are two different things. I can't recite the first amendment, but I know in summary it's free speech. I could probably guess but not say definitively who signed it, and for the most part, it doesn't matter. If I need to know that, I'll look it up, but the contents of the document itself it what matters. I have an okay general view of history, which is enough to not repeat it. I don't need to remember the specifics and neither do most people.
Without that knowledge, you can't make intelligent decisions when faced with new situations and you won't always have time to look something up.
That lack of basic understanding is why many of AI engineers and scientists believe, the current models won't ever become really intelligent and won't stop hallucinating.
Of course it's debatable when knowledge stops to be basic but I'd count most of the things mentioned in the comic among them.