Hi OD'd James Alexander
Eris was on my IC for quite a while, as it is at most points for quite a while with its passage through the Sign of Aries. What a slow moving object! That is why I was looking at Solar Arc Eris, as Solar Arcs go at the same rate, following the Progressed Sun.
When I broke off that religious group I was in, in April of 1994, Solar Arc Eris was at 19 degrees 9 minutes Taurus, conjunct my Natal Jupiter at 19 degrees 26 minutes Taurus. This kicked off some real chaos, to say the least. When it came to fully conjunct that position of Natal Jupiter, in August of 1994, I gave up my rented church building, and that was "the beginning of the end" of my religious career, and that was a good thing. I could write volumes on organized religion in America today, and why it is good to avoid most of it, but that is another subject.
Have you looked at Solar Arc Eris on your chart? As Noel Tyl noted, in his book, Solar Arcs, Astrology's Most Successful Predictive System, the Solar Arcs tend to be very precise in many cases. So, I would think that using Solar Arc Eris would be a way of validating Eris as an object on the level of the other planets, or planetoids. It is also a good way to test the chaotic element of Eris. The above example seems to bear that out. Have you experienced any particularly chaotic times in your life where Solar Arc Eris was in play? Or, do you have other examples, from other charts, where this is the case? Let me know, if you take a look at Solar Arc Eris on your chart and others, what you see.
Ken