Petosiris, I noted above that I didn't expect you to agree with what I wrote. I just hoped you would follow it.
I don't mean this in any attacking way, but just as an everyday common-sense observation: that people are unlikely to find evidence in an area where they are not looking, let alone in an area where they truly do not want to look.
You are familiar with this article by Greenbaum and Ross: The Role of Egypt in the Development of the Horoscope."
https://www.academia.edu/7370462/The_Role_of_Egypt_in_the_Development_of_the_Horoscope
[I see that Micah Ross has two new articles out: I'll see if I can find them:
Demotic Horoscopes
Ancient Astronomy in Its Mediterranean Context (300 BC–AD 300): A Brill Companion, Brill (2018), 427-443.
Egyptian Planetary Theory
Ancient Astronomy in Its Mediterranean Context (300 BC–AD 300): A Brill Companion, Brill (2018), 136-141.]
I've also not purchased this article: perhaps you have.
Dorian Greenbaum: "What is a Daimon, and What Does it Have to Do with Astrology?"
https://www.uacastrology.com/record...-Does-it-Have-to-Do-with-Astrology-p108202724
Also this article by Stefan Heilen:
https://www.academia.edu/7781974/Some_metrical_fragments_from_Nechepsos_and_Petosiris
In a Skyscript interview, Dorian Greenbaum made a comment that I indicated previously about Saturn:
http://www.astro.com/
"Q: 'You referred the other day to Saturn in the 12th house being 'in its joy'. Does that work, in your experience? Are you glad that your Saturn is in the 12th?'
"A. 'Well, according to the tradition of course, you want the malefics in cadent houses. You want Saturn in its joy in the 12th, and Mars in its joy in the 6th. You want them cadent so that they can't do a lot of damage.'"
So it may be as simple as that.
You are probably also familiar with her book, T
he Daimon in Hellenistic Astrology: Origins and Influence, based on her doctoral dissertation.
This is one expensive book, but the introduction is available at:
https://books.google.ca/books?id=Bn...ce=gbs_ge_summary_r&cad=0#v=onepage&q&f=false
Greenbaum draws on a wide variety of ancient cultures, including Egyptian, and clarifies that there is no single tradition for the daemon (good and evil spirit of the 11th and 12th houses.) I happen to be interested in the Egyptian thread.
Heilen notes that the attribution of astrology's foundations to Egyptian sages was probably based on pseudonyms from the Hermetic tradition that flourished in Hellenized Egypt. But this tradition didn't come out of nowhere, and has a number of references to Egyptian gods.
When archaeological finds of some horoscopes from Hellenized Egypt refer to the 4th house as the "duat" ("dwat,") the Egyptian name for the judgement hall of Osiris, and late ancient astrologers switch from a sidereal to tropical system, we find enough tidbits of evidence to think that an Egyptian origin for houses and their thematic interpretations is worthwhile exploring.