Hi Vesselin,
these are some comments on three passages of you essay.
Adolfo.
"I think everyone would agree that we will never gain deep understanding of the
world if legitimate physical questions - such as those of the nature of the entities living
at the quantum scale - are ignored by labeling them metaphysical or philosophical"
I go further in this regard. I think we will never gain a full deep understanding of the world (Reality), however we will keep asking questions and trying to understand how Reality works.
"We, as species, would not have survived if Dirac's analysis and
conclusion were wrong because in such a case photons reflected by different objects
would interfere before hitting our eyes' retina and we would be unable to see the world
properly."
This type of argument makes me think that Feynman was not joking when he said nobody understands Quantum Mechanics. The type of argument is " The results are correct because if they are different then I would not exist" In this type of arguments we disregard the possibility that the model is wrong or incomplete.
Still with Feynman. I also think he wasn't joking because knowing how a black box behaves does not mean we know or understand what it is inside. In this respect Quantum Mechanics it is just a model for what we think it is inside a black box and we are still trying to understand what is it inside.
"The Eleatics believed that being (what exists) is continuous
and that nothing can come into or go out of being because it would contradict a basic
postulate - being exists, non-being does not exist - which can be deduced from what
we perceive"
Existence and Non- Existence are not separable, because Non-Existence is a function of Existence. We always need an object to say that there is "nothing". I think of an empty box and say that there is nothing in there. Well, I can look closer and say there is air in there. On this sense we can keep looking for smaller scales and look closer as we can. In the same context, we define Existence for what we do perceive and Non Existence for what we do not perceive. In this way Reality could be Digital.