Manuel
"No selection = no existence" But this is just a principle, a very condensed way of expressing all that is happening. It does not, and cannot-other than in terms of an unsubstantiated belief-enable the identification of what 'ultimately' existed, because we cannot transcend our own existence. To put this simply, I can assert that the existence we are aware of is no more than a shoot-em-up game created by green giants with six heads. Now, that assertion is immediately rejected because it is 'preposterous'. But really its rejection can only be on the basis that there is no experienceable evidence to support this. And that is the point, if A there is always the possibility of not-A, which can never be known (my giants). Our existence is A, we are trapped in an existentially closed system.
I am also becoming confused by your depiction of effect causality. I can, obviously, understand the need to ensure we differentiate what caused what, and not get side-tracked by the order or whether something is a superficial representation of something else. But I sense this is not what you are pointing to. I make the distinction between whatever comprises existence and the physically existent state it is in. Reality is whatever state whatever comprises it is in at that time. In other words, not only is the concept of objects ontologically incorrect, the investigation in terms of substance is not really the correct approach. So I am now wondering, out loud, whether when you refer to effect, you are effectively referring to the differentiation between state and substance.
Because the simple fact is that what we know about existence is that:
-something exists independently of the mechanisms whereby it is detected
-that something occurs differently, ie there is alteration
So it is a sequence and there is a physical cause of the change.
"What is predetermined is that for existence to come into being requires the paring event of a selection with its potential"
This sounds like an alternative way of expressing 'effect (existence) causes next effect (existence)', although I really do not understand what it can mean in terms of reality. Such words as 'choice' are worrying, existence does not function on the basis of choice. And certainly anything we do does not affect the physical circumstance (but I do not think you are implying that). You seem to be endowing what is just a mechanic with a characteristic that is not there.
Paul