[TomB]

They superimposed glyphs on other glyphs in a temple? That sounds more unlikely than these drawings are either prophetic or remnants of a destroyed civilization.

Why?

[VadeRetro]

Some people do Occam's Razor upside-down. The astonishing is assumed true, because it's sexier.

[#3Fan]

Glyphs carved over glyphs on a ceiling? Why would anyone do that? And they just happened to line up perfectly with the ones that are already there? Not a chance. Either prophetic visions or remnants of a destroyed civilization are much more likely.