Within Earwa there are a number of known magics meant to bring the powers of the subjective Outside to the objective mortal plane through reflections of the God. The Gnosis is regarded as the purest because it is an intellectually-based use of extractions, while the anagogic magic is a derivation of the Outside. Finally the Psukhe is an emotional acceptance of the God's will blending Outside and mortal plane.
My question is; could there be other forms of magic? Whether or not this comes up in the next few books, does the world Bakker created allow for alternate forms? I suppose this all comes down to what the basis for magic is, but it could be interesting if there was a type of magic based on say, familiar knowing, aka the type of knowledge that only comes from experience, like sex, or losing a loved one, and this subjective experience can be drawn upon to reinterpret the world. Or an exchange whereby the Outside is transposed upon the world (there appears to be some places where the Outside is far more present in Earwa, as shown in TGO).
Thoughts? Is there any basis for magic you think might be interesting?