All sorcerers walk on the echo of the ground when they fly. All sorcerers refer back to a person they know at a place they know when they perform the Cants of Calling. The Cants of Compulsion are Cants of possession, Gnostic and Anagogic both, that force the mind in knew directions and may leave the victim permanently changed. Both the Gnosis and Anagogic Sorcery use the same terminology and same basic types of defensive sorceries: Wards of Exposure, Wards of Shielding, and Skin Wards. And so on. The metaphysical principles involved are the same- it is the mechanisms of manipulation, and the capability of those mechanisms, that differ.
So it is with the Daimos. It is a type of sorcery, like war cants or wards, or cants of torment but it deals with what most sorcerers shrink from. The Scarlet Spires did not invent a whole knew kind of sorcery working on different principles when they developed the Daimos. Instead they applied the Anagogic Sorcery they possessed and understood to the mastering of the Outside.
This is supported not only by logic, but the terminology in the appendix. The Anagosis, the Gnosis, and the Iswazi are all referred to as "branches" of sorcery. The Daimos is not only not referred to in such a manner, but is referred to as type of Cant. The Daimos is not a separate type of sorcery but a rarely studied and even more rarely used set of sorcerous abilities, such are the moral and political repercussions of its use.
Good post, and I agree with all your main points.
While I'm not sure there will ever be a clean-cut, canonized outline of the distinct forms of magic, I personally think it could pretty much be broken into (at most) three distinct forms. The first form consists of "Sorcery Proper" and includes the Gnostic, Anagogic, and Daimotic branches.
I perpetually waver on whether the Psukhe and the use of Water, in general, should be lumped in with the other Sorcerous methodologies. I do not, however, think Cishaurim and their Psukhe are the sole representatives of Water practictioners. At this point I'm inclined to believe that most, if not at all, of the "theurgic" or divine sorceries used by the likes of Psatma and Porsparian are simply a different application of the Water.
The third category would be the Tekne, which I think is probably not
just advanced technology -- at the very least, it is clearly technology that carries intrinsic metaphysical consequences. Aporetics are the odd one out since they seemingly function based on semantic roots without necessarily being Sorcery Proper.
Both Aporetics and the Tekne (as well as sorcerous artifacts) bear various similarities to traditional ideas of witchcraft, and historically witchcraft has been called the "Old Religion". The word
Tekne is derived from the Greek 'techne' (or
craft). Since the Tekne itself is referred to occasionally as the "Old Science", and given that the Tekne, Aporetics, and Sorcerous artifacts are all a type of 'craft' as it were, it doesn't seem too far-fetched to lump them all together.
It also seems possible that the unifying aspect of these various forms of "witchcraft" is the mysterious language of souls, as depicted on the Ekkinu. I would suggest that most sorcerous artifacts are enchanted by inscriptions of the very same metaphysical source code if you will. This could explain why Emilidis's artifacts are unaffected by Chorae, for example.