Maybe you will never know, but I do. Sorry.
No need to be sorry. Just don't forget about falsifiability, quantum mechanics or no quantum mechanics
Edit: What don't you generally understand about self-determinism after:
The set of Reality contains that and only that which is real. If there were something 'real enough' outside of Reality so as to be able to affect it, then obviously it wouldn't be outside of Reality, but rather inside.
Accordingly, there is nothing external to reality which is real enough to determine it. There is no need to look for an infinite regression in a self-contained system. Reality must embody the rules of self-configuration because there is nothing external to it which is real enough to configure it.
This still doesn't explain how it came to be as it happens to be. Unless and until you manage to convincingly explain that point somehow (that of the Primary Cause), I don't see much of a difference between your breed of determinism and plain vanilla determinism...
In short, I don't understand how it is different
I discussed falsifiability. But I'll explain it further.
There are different kinds of falsifiability. One kind is the scientific kind. Another is the logical kind (of which the scientific kind is a mere derivative).
A logical model can be falsified on two levels. On a lower level, it can be falsified if new information is discovered that should necessarily be explained by the model (i.e. the information falls within the scope of the model) but isn't. This renders the model internally inconsistent and thus intrinsically invalid. On a higher level, it can be falsified if a greater, more comprehensive model of greater scope not only accounts for and explains all information contained by the original model, but also accounts for and explains information which falls outside the scope of the original model. This renders the model externally inconsistent and thus extrinsically invalid.
The *ideal* model is one that can never be falsified. How would this work? Well, suppose you have a model about which any attempt to falsify it only serves to reinforce it.
Consider the following statement: "Absolute truth exists." Any attempt to falsify this statement actually reinforces it. For example, if we then consider the statement "absolute truth does not exist," it is akin to saying "it is the absolute truth that absolute truth does not exist," and thus the statement renders itself contradictory and invalid. If one were to try to argue that this latter statement is not implied by the former -- perhaps by suggesting that all truth is relative -- then "it is the relative truth that absolute truth does not exist" carries no objective weight whatsoever, and therefore we cannot ascribe any objective validity to it.
Regarding your 2nd statement, yes it does. Consider again the truism, "Sound logic is soundly logical because sound logic says so." So, what causes logic to be logical? Logic does. But, what causes logic to be logically capable of ascribing sound logic as logical? Again, logic does. It is its own primary cause. Logic is a self-contained system, and thus relies only upon the logical rules of self-containment to be logical. Similarly, Reality is its own primary cause. There is nothing real enough which could be a real primary cause for Reality other than Reality itself. If the primary cause is Real, then it is
axiomatically self-contained within the Real set.
Self-determinism is different from "vanilla" determinism in that it closes the causal loop as opposed to leaving it open and incomplete. An infinite regression does not result from a closed loop. Consider, for example, a computer feedback loop in which individual proxies relay informational feedback to a central syntax controller. The controller receives this feedback, processes it according to a utility function, and transmits it back again to the proxies, and the cyclical process continues. This is a mechanical type of self-determinism.
So, why doesn't a self-determined Reality require an external primary cause in the same way that a computer feedback loop, self-deterministic as it may be, requires a computer programmer? The answer lies mostly in the question.
If you ask, "So...what caused Reality's self-configuration?", the question itself can possibly throw you off. Generally, most people would interpret this in a time-based fashion, assuming that there must be a cause that must occur
before its effect. We know from Einstein that this is a topological understanding of causality, and a real understanding of causality is one that involves superposition.
Edit: The
mechanism by which Reality primarily causes itself is perception. That is, real perceivers perceive and affirm the existence of Reality; Reality is self-referential. This is self-apparent, and we can observe this mechanism in action via every moment of our experience. We are constituents of that mechanism. Some parts of Reality (e.g. us) perceive and affirm the existence of other parts of Reality. Just as logic is self-referential, so is Reality.