[inquest]

Those were pretty interesting links. To answer your question, there was nothing involved that looks at all like writing, so that puts it in a bit of a different category. Nonetheless, if the information presented on those sites is genuine, I don't see how it would be an inherently unscientific exercise for experts to debate and theorize on whether these things are of natural origin.

[Cephalalgia]

Nonetheless, if the information presented on those sites is genuine, I don't see how it would be an inherently unscientific exercise for experts to debate and theorize on whether these things are of natural origin.

My point for bringing them up was to (hopefully) illustrate how it's not always clear whether something is or isn't man-made.

You said:

"But we can look at some random artifact with it stamped on there and immediately recognize that it was not formed by natural processes."

I realize you were talking about cuneiform writing and not undersea "roads," but I'm curious by what process one could "immediately recognize" that something was or was not formed by natural processes.