You are using Popper's criterion for what constitutes a valid scientific theory, but I think you misunderstand me.
My claim is that saying that theoretical physics is the ultimate explanation of reality is a metaphysical position. Cosmology describes the big bang but it does not answer the question "why is it so?". Maybe there is no answer. Maybe it is not knowable. Maybe theoretical physics cannot have the total picture. These are all metaphysical questions that seem perfectly legitimate to me. If you are not allowed to ask or talk about these questions, I would say that you just accepted a religious faith. I am not trying to sell you anything except doubt and curiosity :)
> Many things are accepted by most people without much reflection. Often that's because they really are as simple as they look
Perhaps. Perhaps not.
> What are the outstanding empirical questions about consciousness? As soon as you go down to an empirical level, you find that no mysticism is necessary: there are valid, interesting questions to be asked and answered, but they are no more outside science than questions about how, say, protein folding works.
You are implicitly making the strong claim that knowledge can only be attained through empiricism. This is clearly not the case. I know that I am conscious and I assume that you are, but I cannot use empiricism to test this hypothesis, not can you use it to verify that I am, indeed, conscious. So there is something very fundamental -- in fact the only thing I know with 100% certitude -- that cannot be empirically tested.
Your use of the word "mysticism" betrays the current bias against such questions. I am not proposing any woo. I'm just curious. Even being curious about certain topics nowadays gets you labelled and a "mystic". I think this illustrates the point that I wanted to make in the beginning.