Clairvoyance happens to me all the time, mostly minor things but sometimes big things, many years in advance. It typically happens in dreams but sometimes also in "daydreaming" sequeces where it just comes up and later happens. At other times my spirit guide just lays it doen for me how things will be. My brain is a swiss cheese of things remembered before the fact, starting as young as childhood.
Gormur, what you describe there is something that happened a lot for me as a kid. I just knew stuff I had no way of knowing. Teachers were baffled.
My Spirit Guides have shown me feats of "Magic" in the contest of their particular brand of quantum physics that they teach me, and they use these miracles to underline their teachings. They insist that it is nothing out of the ordinary and that it in fact is "quantum physics applied on the macro level" Its hotly debated in science to what extent that is possible but I have seen macro objects materialize in the air before my eyes, me as an observer watching it happen, then drop to the ground.
Long story short:
Consciousness is a fundamental property of energy
Every discreet body of energy has its own consciousness
This includes the Uni/Multiverse, this is the Superobserver.
There is nothing but the superposition of all things.
If the superobserver and the observer align, something can be pulled from that superposition.
"Thats not what science says!" no, Science has many conflicting theories about what might be it. What I'm thought, ahead of scientificf consensus, is that this is it, and my spirits go to the lengths of showing me "miracles" (actually quantum phenomena applied on the macro level) to drive that point home.
They insist that the universe goes both ways, forward in time and backward in time, and that the human brain has the ability to premember things as much as remember things, provided you're not a nihilist skeptic screeching it can't be done, because you can even deny your eyesight to the point of no longer registering it. The Universe goes both ways and the brain does too. This is supported by a mountain of clairvoyance from all cultures of all time, and each get told that they are an individual imagining things and that no such thing can exist by, for lack of a kinder word, muggles.