But what really intrigues people is that there may be some link between this kind of ability, should it exist (given the probabilistic nature of quantum behavior, and the “many worlds” interpretation for instance) and the concept of free will centered on the “subjective” – the sense of “I” each of us has.

Way back when, I had a friend who was getting a Master’s degree in physics. I didn’t really understand why he was taking high-level philosphy courses as part of the program. But it’s these types of questions that really blur the distinction betwen quantum physics and philosophy.

Be careful when it comes to believing in the GCP. It’s fascinating, but take a look at some of the criticism and you’ll find that their methodology is questionable. See e.g. these pages:
Skeptic Report

Wikipedia article

E.g. the thing about those spikes occurring hours prior to some gigantic event – what’s that supposed to prove/signify? That everyone subconsciously knew that those airplanes would hit the WTC?

But in any case your thoughts are very interesting. I’ve for a long time believed (more or less) that everything is connected, one way or another, somehow. Perhaps, as you say, through quantum physics?

Anyhow, a quote from professor Farnsworth (of Futurama) is appropriate. They’re at the race tracks, and the horse the professor bid on comes in second, something like 1 nanometer behind the winner, and the professor exclaims: “That’s not fair! You changed the outcome by measuring it!”

I think rickyjames said it best in a previous discussion of this sort:

"A quantum observer is a single atom without consciousness, which is why I’m always amazed that "consciousness" gets injected into [Quantum Mechanics] debates. QM is a description of reality, not a description of consciousness. In fact, the two almost certainly have absolutely nothing to do with each other.

Extending the angel-pin and [schrodinger's cat] analogy, in the middle ages the general belief was that "the Earth is the Center of the Universe", which was a reflection of our inflated sense of self-importance. I think the same is true with current attempts to link consciousness to quantum theory. Centuries ago space was the vast and mysterious unknown that just HAS to all be centered around US and our little world. Well, telescopes blew THAT concept away. Now quantum mechanics is the vast and mysterious unknown that just HAS to all be centered around US and our little minds.

Yeah, right. As Arthur Clark is fond of saying, The Universe is not only stranger than we imagine, it’s stranger than we CAN imagine. That quote can be taken on two levels. Maybe we’ll never get it not because we lack the imagination, but because we lack the ability to drop the self-centered notions that the Universe revolves around US.

Tho certainly the Vatican’s admission they were in the wrong about Galileo is a hopeful start in the right direction…"

Never let your mind be so open that your brain falls out.

But also be skeptical about the skeptics.

About that unspeakable movie.

And if you really want to know what quantum mechanics is or is not about, take a look at this site.