Why we can't read it and Michael Coe's "Five Pillars of Decipherment"

[Koen G]

Others such as Koen Gheuens have mapped specific motifs over a more limited European range. It's very unfortunate that we don't have any visibility into the content of Martina Pippal's recent course on the subject at the University of Vienna.

I just want to point out here that the mapping over a limited European range is not restricted by choice, but rather by the evidence. For example, when I referred to academic publications that indicate that the T-O diagram is an expression of a medieval Christian world view, Diane protested that my scope was too limited. But I can't expand my scope if there is nothing to expand it to. When I asked for examples of a similar T-in-O diagram in non-Christian cultures, the answer was silence.