William
"I think it's reasonable to suppose the existence for things which are entirely un-demonstratable if effects from them seem to be documented with acceptable certainty"
Yes it is. When I say proven, valid, known, etc, etc, that encompasses the notion of proper hypothesis. It, obviously just gets awkward to repeat that caveat every time. The point being that physical existence is all that which is potentially knowable to us. And knowing is a function of receiving physical input, forget the subsequent processing of it, all this concern with consciousness/perception, etc is irrelevant.
Now, there are two consequences of this:
-there may be an alternative existence, because what that means is that we are trapped in an existentially closed system (ie our physical existence). But this is irrelevant, because we cannot know it. To put it simply, what we are experiencing might be a shoot-em-up game being played by green giants with 6 heads! We can never know. As this is science we must only concern ourselves with what is potentially knowable
-while it is potentially knowable, we may not be able to know it. But that is a practical (ie physical) issue, not metaphysical. There are two aspects to this: a) no physical input has reached us (or any sentient organism), b) what does may have been 'interfered' with in some way.
This is where proper hypothesis comes into effect. Essentially it is virtual sensing, ie given the rules of sensing, it is establishing what we could have sensed had there not been some identifiable problem. It is NOT overriding our existence and creating assertions about it which have no experienceable basis. Obviously, in respect of that which is directly experienceable, it is taken for granted that this is valid, in the sense that individualism has been eradicated.
"With everything getting so small..."
Yes. What I call a physically existent state involves such a vanishingly small degree of alteration and duration, that there is no way we can differentiate that in experimentation (especially since we are reliant on the capabilities of light to differentiate it, so that we can then see it). So we have to accept that given the existence we experience this must be the 'bottom line'. How this manifests, ie what actually occurs, is another matter (ie physics!). The point is, that the search for that must stay within the rules of our reality, not make things up. There is a big fallacy here that many think they can start with a 'blank sheet of paper' and find out. But reality is not an abstract concept, there is a physical process underpinning it, which must be reflected in any attempts to explain it. To further the analogy, we exist, we are part of it. So there is a 'sheet of paper' automatically. We cannot transcend our own existence.
"So, the way to document the physical reality of such tiny teeny pieces is to come up with a representation that has a macro size observably"
This is true, obviously, because there is only one form in which physical existence occurs. And if we start with a proper analysis of the 'macro' we can discern, generically, the rule. Think about it. Any given 'object' is so because we deem it on the basis of certain superficial physical attributes, ie not how it exists. Indeed, we even contradict that by declaring 'it has changed'. But if there is change then the changed it is something else. We know there is alteration, yet we do not follow this through to its logical conclusion. Which is that there is no 'object', as such, but a sequence of discrete definitive physically existent states, which, at a higher level of conception, appears to have a persistence in their existence. Reality is whatever state is occurring at that time.
In simple language, the 'classical' view is correct, had it been properly understood. The relativity/QM view is incorrect, because it relies on some form of indefiniteness in reality, which does not occur.
Paul