I'm pretty sure this attitude will not get you far in promoting Epicurean philosophy.
it's exactly the attitude that people like Lucretius or Diogenes of Oinoanda displayed in calling Epicurus a "savior" or "father" or a virtual "god among men."
Proofs, knowledge and reality are very much within a grasp and abilities of most people.
And I see that statement as totally inconsistent with your prior statements to the effect that we can never really know truth about the nature of things.
In science it's called five sigma and it's a statistical significance which scientists agreed on to call a phenomenon proved to be true.
That may well be so. I have no personal allegiance "science" as if the word "science" is the ultimate religion with "scientists" as the priesthood. My allegiance is to Nature and this world, and to the Epicurean perspective - not "statistical significance " and especially not to "what scientists agree on."
This is a huge point and very clearly stated so thanks for bring it up again. Neither Epicurean philosophy nor this forum is dedicated to "science" in the way I think you mean it and the way that term is most often used today as a catch-all for "expert consensus." That's the equivalent of the Platonic adherence to "wisdom" or "logic" as the goal of life rather than to a human-achievable happiness based on pleasure.
And narrative where you accuse many people over millenia to be infected with "mind virus" and philosophers other than Epicurus to be regressive doesn't promote Epicurean philosophy at all. It makes it sound insane.
I realize that that reaction will come from quarters which are dedicated to "science" and to "skepticism" above all. That's one of those lines of separation from what Epicurus stood for and what he didn't stand for.