Continue to live with that fallacy, I already pointed out that by your line of logic, blackhole shouldn't have existed in stone age due to the overwhelming lack of evidence to the stone age men.
No, you're going off the idea that an overwhelming lack of evidence is
proof of absence. For one stone-age man to say to another, yes, perhaps, suggesting a black hole would seem rather ridiculous. Our technologies are radically different, and as such, we've had a different experience.
Give stone-age man modern telescopes and computers and a couple generations; see what happens.
[edit] Just so you know, I don't believe an overwhelming amount of evidence is
proof of existence, either. It's the use of the word
overwhelming that really determines why someone does or doesn't (should or shouldn't?) believe something. Degrees of certainty.