[SirSavary]

The book is written in Latin, not exactly a dead language.

[brokensegue]

That isn't what the claim is about. I mean I don't think the source is particularly convincing but the claim is that it figured out the significance of the text not the literal meaning of the words

[roywiggins]

The interesting claim is that this would be hard for an expert to do, which is basically unsupported outside of anonymous experts who spent an unknown amount of time on the question. It also doesn't quote any experts on whether Gemini's conclusions are reasonable.