Well, you said “all” possible worlds. You still have no conceivable method of testing in those terms. What you can do is test some set of hypotheticals. And your results will be applicable to the set of hypotheticals you test, but not to other possible scenarios and certainly not to all possible worlds.
I know what you’re talking about. It’s just that it’s not relevant to your experiment. It adds nothing to say that the experimenters ought to be conscious. This isn’t even the sort of thing you’d include in the specification for an experiment unless you were managing a bunch of drunken grad students who were regularly found napping instead of doing their work. What it does do, however, is suggest – as does your link – that you’ve gotten other irrelevant philosophical/cosmological considerations muddled up in your biology, where they do not belong.
That’s the same non sequitur as before.
I think that before you start charting your criteria you probably need a testable hypothesis. You really don’t have one.
So, let’s say I’ve got a notion that there is a Universal Common Rubber-Band Stretcher, which exists by necessity in all possible worlds: a non-classical (or quantum) mind that encompasses rubber-band stretching and consciousness or agent causality according to Orch-OR’s theory of consciousness.
A Conscientious Objector (I like to employ them) first throws a bunch of materials from the nearest hardware store in a bowl with a bunch of rubber bands, and sees whether those materials stretch the rubber band. Then, after we have the result of that experiment, the Conscientious Objector guides the materials in the bowl to see if he can produce a specified degree of rubber-band stretching.
The combined outcomes of these experiments would of course provide evidence for an alien rubber-band stretcher. However, if we do these experiments using many different hardware stores, and shop in multiple departments thereof, it would show how a personal but necessary transcended rubber-band stretcher exists in nature.
Now, yes, that’s ridiculous. But there is nothing wrong with it which is not also wrong with your scenario.