> its not an answer to any question
It is. It is the theory of everything.
> what is this "consiousness" in the end, which has in its nature, the production of all material reality to serve as a fixed causal basis for perception?
If you haven't already came acrosss M.U.H, I would just direct you to https://arxiv.org/pdf/0704.0646
>What madness to is it to say that mercury in a thermometer not only acts as-if it is in coffe, but in its nature, acts as if there is an entire world that it is moving through -- and its motion up and down is always according to laws and principles as if such a world existed?
Yes, that is exactly what is being proposed. Causality is an illusion. But how? Imagine an idea of a "definable world". Imagine that all definable worlds "exist", but imagine consciousness appearing only in "regular" worlds, with uniform laws and behaviors..
>I hypothesize that only computable and decidable (in Godel's sense) structures exist
That's kinda DoA. Isn't there a proof that uncomputable things exist in mathematics, so if mathematics is true, why hypothesize that they don't exist even if we know that they exist?
>but imagine consciousness appearing only in "regular" worlds, with uniform laws and behaviors..
Why this limitation? Irregular worlds with appearing consciousness are mathematically definable just fine, easily even.