Did you not see the author's note about being an outsider to academia? Not everyone has the background to pull all that off. This is an earnest attempt to come as close as possible and they even invite feedback that would help it become a real academic submission.
I mean, the process should have been to contact some local academics to discuss the mater. If I say it works (or it doesn't) I'm adding near nothing to the claim, as I'm not an academic myself.
Big claims like this need clear and solid work. Here it just looks like LLM generated.
