You haven't shifted your position...what do you have to say about scientific discoveries? You can't prove something doesn't exist after its been found.
Has it really been found?
After your explanation of paradigm shifts I would really say that science doesn't prove the existance of anything. This doesn't mean that when we discover a new particle (just for the sake of an example) that particle doesn't exist, it means that that particle COULD well not exist. We don't know (and can't know for sure) if what our paradigm (to stick with that interpretation) explains as a new particle is really a new particle and not some manifestation of some different force we still know nothing about.
In fact, we can not be sure (with --absolute-- certainty) about the existance of the same keyboards we are using to type down our comments here. Does this mean they don't exist or we should not use them anymore until we don't have the absolute certainty of their existance? No, not at all. What all this undeletable uncertainty is telling us is just to not become fanatics of what we think we know, to remain open to new possibilities, so that when reality will bring it before our eyes we will be able to recognize it.
Because, on the other hand, while we can not be --absolutely-- sure of anything, I don't see why we should start thinking we really know nothing. Reality is all around us, it was there before, it will be there after, it's much greater than us and, most important, since we are some beings evolved in it we are well-equipped to grasp at least a part of it, reality is not trying to cheat us: much of what we see happening is a perception of something really happening. If we are cheated, it's because we listened more to what was in our imagination than to what was around us.
Our keyboards, for example, are there, and even if their true nature could be much more complex than what we think, they are still there nonetheless, they (most probably) have those characteristics we say they have (the same characteristics that make it possible for us to use them) and we are able to not only use them, but even build them, so we are surely able to control and reproduce the mechanisms behind their working that are relevant to us. Are those mechanisms really what we think they are? It is not important, but we know those mechanisms work in a way that has made possible for us to replicate them. maybe some day we will know something more and we will see that what we thinked was essentially limited, but it still worked.
-----
An absolute truth exists, but it's not necessarily within our possibilities to know it. I am really doubting we can really understand the full extent of reality, it really surpasses our skills. I remember an episode that hit me: two pictures: the first one was an image of roughly half of our galaxy, and contained a million (literally) visible stars (which were visible in the image). The second one was a picture of some part of deep space: it had another million lights, but this time every one of them was a galaxy. My mind is simply not able to fully understand a number that big. And that was only a part of it.
Are we able to know everything? We don't know (probably not). Do we know the real essence of at least something? We don't know (probably not). Will we ever know? We don't know (probablt not). Maybe we will stick forever in some interpretation. Is this interpretation valuable in some ways? Yes. Extremely, because for what stupid we are we know how to bend part of reality to our will. Our interpretation is extremely valuable. But let us never forget it is an interpretation. We are able to kill -with- it, but we can not kill -in the name- of it.
----------------------------------------------------------
This thread really has two different topics in it (material philosophy and spiritual philosophy? Or am I just delirious some more?).
As for the second, I enjoyed Frankiess explanation of his way of life. It made me think.