I'm questioning the validity of empiricism. But fair enough, no problem.
It's completely reasonable to question empiricism and any other method before, during, and after usage. That doesn't mean that all criticisms forwarded are necessarily valid.
We don't know how reality is. We hope representations are veridical, as this allows our minds to explore using scientific method. A non-veridical world would be challenging for the mind that enjoys exploration by empiricism, for sure!
We assume that the reality we experience is at least based in an objective setting for functional reasons. This, and the surrounding topics and implications, are very well trodden territory, at last check.
Given that we don't know reality. And we don't know enough about neural function to reverse engineer it (sorry used the n word!), all we have is what evidence there is for veridicality against that for non-veridicality. This balance, this seesaw is moving.
In some ways, sure. In the ways that actually matter for the implications that you've suggested, not so much.
... and what needs are served by believing in observers. (And who's needs these are!)
The need to uphold some of the basic rules of language and honesty, perhaps? Personally, I'm not all that concerned about specific conclusions, either way, and am not hung up on calling myself or others observers or anything else in particular. It is, however, a label that accurately fits under the normal usage of the word, and you've notably failed to provide an alternate version that would not fit in any fashion that does not invoke fallacies. Thus, it would be rather dishonest of me to argue that I am not an observer.
As evidence accrues towards non-veridical perception, the question arises... what exactly are we examining - the outside world or the dynamics of neural representation? This is the issue. Do space and time exist outside of representation? Does gravity? Does monism? These to me are the questions that increasingly need evaluating.
All this really does is goes back to the issue of how trustworthy the representation actually is in the first place, which turns your overall position into something of a farce, because you've pushed together positions that end up depending on things being both true and false at the same time.
Do space and time exist outside of representation, for example? If no, then anything science has to say about anything is quite untrustworthy and your desire for all physics and space research to stop and be redirected into neuroscience is entirely pointless. If it does exist outside of representation, we are left in the same position that we are in now and nothing about it is weakened in the least, given that it's not supposed to be treated like divine revelation anyways and fundamentally couldn't honestly lead to the conclusion that space and time don't exist outside of representation. You seem to want somehow to hide in the space in between yes and no, though, from your previous comments, yet you have yet to give any indication about why we should trust the conclusions made with neuroscience any more or less than we should treat the conclusions made with chemistry or psychology or how employing neuroscience even could potentially lead to the conclusion that space and time don't exist without employing blatantly fallacious logic.
You may not believe this, but I actually have no problem with your description of observation. As I'm sure you agree it's been around for years. And it's not remotely complex. As I mentioned there have for ages been a core of posters on this forum using this description.
I have no problem believing that.
What is problematic for me is the following... This description of observation as system behaviour does not help us understand the phenomenon of the seeming observer, as it does not account for how this illusion appears. If any theory of consciousness seeks to be coherent then it needs to do this. It has to actually give an explanation for what appears, otherwise it is simply, and rightfully, accused of merely explaining away consciousness.
Is it actually explaining away lightning when lightning is explained as an electrical discharge between a cloud and the ground? Or is it just a simpler explanation, better suited for some situations than a full technical description?
And I'm not saying it's conclusive. I'm saying we need more research, and it's important we do it.
Sure! Just not for the reasons and logic that you're championing, because they don't actually work like you seem to think they work.
Well, we do actually have a coherent neuronal model to explain many aspects of this observer illusion, as I pointed out before.
Which, of course, does nothing at all to actually argue
against the existence of observers in general. Even less so when "illusion" isn't being used in a way that could validly lead to such a conclusion.