The first clarification is: It was supposed to be kind of a light musing on things, and perhaps some side experimentation. It was not a very serious doctrine that I am now espousing as the new and better way. I think a few people may have taken it that way.
Second clarification: It was definitely not meant as an accusation that Hermetic magic is wrong, doesn't work, or is fundamentally flawed. It was simply a post pondering if the system would have looked the same if we had always known about the Heliocentric universe. I don't think it would have looked the same, others suppose that it might. The point is that they did'nt know and it is set up that way and it has worked for many. Despite the nagging feeling with the symbol set, it worked for me. It still works for me when working with other people and we all need to get on the same page.
Thinking of things in different ways does not necessitate abandoning old ways. In Kabbala for instance different Rabbi's and different texts have attributed the planets in different order. Even in the same text this sometimes happens (Sepher Ratziel). Each arrangement is not an argument against another one, simply a different approach, sometimes yielding a different result.
Another example of an approach you could do using modern methods is to take the planets as they are typically arranged on a Septagram like this:
But instead connect them using an obtuse heptagram like this:
The planets automatically fall into the order of their atomic weights, which might be an interesting order to work them in if you were alchemicaly inclined. It looks like this:
Mars rules iron .. .. .. .. atomic weight 56
Venus rules copper .. .. .. .. atomic weight 63
Moon rules silver .. .. .. .. atomic weight 108
Jupiter rules tin .. .. .. .. atomic weight 118
Sun rules gold .. .. .. .. atomic weight 196
Mercury rules mercury .. .. .. .. atomic weight 200
Saturn rules lead .. .. .. .. atomic weight 207
Third clarification: This one is the MOST IMPORTANT. There tends to be a little confusion about the difference between the physical planets as psycospiritual batteries of power and the planets as symbols of the levels between material manifestation and subtler more ultimate layers of reality. I want to be clear that I was speaking about the latter, not the former.
Now, unlike Frater R.O. in his post here, I do actually use the planets as batteries of power. In this I follow a long tradition established in China, India, and several other places. One can draw upon the energies of the actual planets through the body, as well as certain stars and even groups of stars. One can also travel to these places in the Astral Body (indeed that is why the astral body is called the Astral or Star Body). You can zip off to the physical sun and other stars, and even the center of the galaxy. I can say from experience that it is worthwhile doing so. You are however simply traveling to a place in the lower astral that relates to the spacial coordinates of the physical location. You are not shifting your awareness to a higher sphere. Doing so from those coordinates can yield very interesting results, but that is perhaps best left for another day.
The type of work that Heremetic magic, Khabbalah, and other similar systems describe is NOT about traveling to the physical place. It is about travel to a higher vibrational sphere from material to subtle reality. I tend to describe this as Vertical rather than Horizontal travel.
The planets in this case are simply convenient symbols for dividing up the experience into manageable levels, which is exactly what R.O. states in the post liked to above. Indians and some Greeks divided the experience up using the elements. Golden Dawn took the Enochian Athyrs and used it in the same way.
My post was geared around setting up a system of experiencing this journey but which deliberately shifts consciousness away from being rooted in the earth. It is important to note that to the Gnostics the entire point was that the Earth was a trap and the planets, far from being helping stepping stones to the stars, were barriers ruled by Archons that essentially kept mankind imprisoned in earth consciousness.
The system that I mused about in the last post, was all about re-rooting in the sun, than re-approaching the lower spheres, the earth itself, and than the higher spheres from that anchor point. In the traditional system the stage of the Sun was thought to be particularly important, the system I put forth recognizes this by having you turn around after you have reached the center and than going to the outer reaches. This is also a good representation of the forumla IAO which uses the vowels associated with Luna, Sol, and Saturn respectively.
The thought of re-anchoring in the galactic center as a symbol of layers of consciousness beyond the ninth sphere was an extrapolation. In my experience, a black hole would be a pretty good symbol for the gnosis of these layers, represented by Causal Layers in my system and by the Veils of Unmanifest Existence.