Good post, Geraldo. A parallel to the Aeon of Horus is the Age of Aquarius, which supposedly began, per the majority of astrologers, in the 20th century, just as the Aeon of Horus did. The Age of Aquarius is, like the Aeon of Horus, supposedly associated with increasing spirituality, but, like you, I see the 20th century as the rise of rationality, science, materialism, and atheism. (The rise, not the triumph. Maybe this century will see the triumph, though it won't be universal.)
I am working on a redo of Western sociological Aeons on planet earth. Strangely my working model is somewhat lining up with the astrogical timescale and not at all ripping off some MSS I once read.
Aeon of Agriculture - 8000 BCE to 3500 BCE
First domestication of plants and animals by seasonally nomadic groups.
Theologically myths were oratory and incorporated their environment. The animals to kill were provided by the whatever sky based superstition they had. Worth noting is the Sahara and Arabian deserts were still grassland when the first domestication occurred.
Signature Mode of Attainment : Kindred practical superstition
Aeon of Commerce - 3200 BCE to 500 BCE
After the Sahara and Arabian deserts dried up you had people in the desert belt settled along rivers. Mainly The Tigris and Nile. Once semi-nomadic agrarian folk had to share the only water. This Aeon includes the advent of cuneiform as a means to track commercial transactions and itemize receipts.
Theologically the Aeon is ruled by a pantheon of carried over sky based things, now written about explicitly, but still serving same role of explanating bad hunting seasons.
Towards the end of this Aeon monoaltry (like Ba'al) paved the way to a singular god.
Signature Mode of Attainment : ceremonial nondual polytheism
Aeon of Abraham: 500 BCE to 1900 CE
Starting well before 500, but coming into form with monotheist preference is The Aeon of Abraham. This is when the sky spirits became global policy. Books like the Torah gave rise to the use manipulative texts for territory acquisition and foreign affairs.
In this Aeon theology became more authoritive and personalized. The precepts of absolute duality were born. A singular god, and a dismantling of more carnal ways.
By 300 CE the monotheistic western world was set.
This Aeon was a reversion. Advancements of the Hellenistic era were cast aside with polytheism and society became holier than thou. There wasn't a euthyphro dilemma after the god became absolute under penalty of death.
This Aeon was truly the dark ages.
Signature Mode of Attainment : Repressive dualist monotheism
Aeon of Science 1800 - Present
This one could have started with DiVinci, or just have been a continuation of the commercial polytheism aeon. But the Vatican and Protestant church liked killing heretics so it was repressed maliciously.
I start it with the industrial revolution and incorporation of mechanized technology. The scientific advances slowly suffocated the voices of clergy proclaiming blasphemy on knowledge.
The current Aeon is as much the undoing of the last as much as that was the undoing of the previous.
Signature Mode of Attainment : nondual atheism