Wouldn't being able to tell somebody else something you shouldn't have known be verifying it independently?
That depends. You have to properly control the conditions for the evidence to be convincing. Under properly controlled conditions, no such experiment has ever succeeded beyond random chance.
Your standards seem impossible to meet with such a concept, how could you test a being or consciousness that doesn't want to be known to others or can't be contacted by just anyone in a lab?
No, wrong. What reason do you have to believe such a being exists?
If it does something, we can test that.
You are closing off the possibilities by saying that only things you can test a certain way are possible.
No, that's completely wrong.
If it is real, it can be tested. This is
always true.
We know that neutrinos are real, and they are fantastically difficult to detect. They have no direct affect on human life at all, unlike your proposed supernatural whatsits. And yet, we know that neutrinos are real, we can detect them and measure them and quantify them and classify them.
If we can detect neutrinos, we can detect your whatevers. You just have to actually do the work.
As I said earlier, we've done exactly this with homeopathy. There are two problems with homepathy; the first of which is that physics and chemistry and biology tell us that it can't possibly work.
Now, if we tested it and found that it
did work, well, that would be a transcendent scientific breakthrough. But when we test it under controlled conditions - and here's the second problem - it has absolutely no effect whatsoever.
This doesn't mean that our experiments are wrong and we need to try again. This means that the anecdotal reports that homepathy is effective are inaccurate, which is what you expect of anecdotal reports.
What you have to do is define what you are talking about, form a hypothesis, do the experiment, and accept the results. Stop looking for excuses and
do the work.
Or - and this is probably quicker, easier, and more educational - listen the the
MIT Introduction to Psychology lecture series.