WOW! What great insight! We don’t know everything and we might learn something new in the future.
What’s pathetic is that this captain obvious is being given any attention.
I believe you missed the author’s point. He’s NOT just saying that great ideas get refined as time passes.
He’s also saying that many people refuse to accept that fact. And that is not a “captain obvious” thing. Even today, many so-called educated people simply accept scientific principles without any question. “Settled science”, if you will.
For millennia, humans used faith as a guide to understanding the world. Even pagans and heathens had folktales that warned of the many consequences of hubris.
Shorn of religion in a world of material comforts, many people will not have the courage to accept the full measure of what skepticism means in a secular context. Hume, Kant, and Nietzsche understood, but their standards were a bit higher than those of modern self-worshipers.