#and then he hits you with “oh yeah Loki is Logi and Odin is Kári and Hoenir is Aegir even though I don't know how that could be possible”

[mynorse-verse]

Finally checking Grimm's Teutonic Mythology, and got to the infamous Loki-Logi identification. I wasn't expecting this part to be as funny as it was.

No, I was not expecting him to go like "Also Odin is Kári, so I guess Hoenir is Aegir... Which I'm not sure how it works at all". It should be at that point he realizes something is faulty, but for some reason he's adamant in making Loki the figure Caesar identified with Vulcan (rather than I don't know, Völundr/Wayland?). And that's when things for sure take a turn:

Since he himself realizes it makes no sense he decides to go "Loki=Prometheus=Logi=Vulcan=Grendel=Saturn=Saturday (Lauderdag)=Satan". No, he's not able to make this work either, and in fact proceeds to debunk the Grendel part. He then partially debunks the Prometheus part by somehow using all the wrong sources, yet the conclusion he reaches is somehow actually right.

By that point one would have either gotten back on their tracks, something he's actually willing to do in the future for other figures if newer sources were to be found; or just fully embrace the bullshit. Once again within the same paragraph, Grimm is actually willing to consider alternative theories and is more than welcome to discuss other sources. For example, when talking about Phol, he's adamant in connecting him to Baldr; but he knows there's the possibility Phol is an independent figure, Freyr or even Ullr, and admits he might be wrong in his prior identification and the reader should also consider the other theories and expect further sources. This is a nice thing. This shows Grimm knows he's not infallible, and that critical thought should therefore prevail.

AND YET he can't come to wrap his head about the fact Loki and Logi may not be the same, and may not be related to any of the other figures he tries to connect them to make it work. He's way too deep into this bullshit and seems to hold this theory in such high regard (even though he wasn't even the one coming with it in the first place!), he just disregards any common sense and proceeds to discuss goddesses as soon as possible.

And here I was worried my hypothetical work of fiction could be way too derivative for huh (checking my own notes) using continental and western figures and myths or playing around with figures and family trees. The moral of the story is don't feel too pressed about (supposed) accuracy regarding your fiction, because Grimm himself didn't obviously care about it either.