Causality, much like reality, isn't what it used to be...
[phys.org]
Just when I thought I was beginning to get my head around spooky-action-at-a-distance, now physicists come up with a serious consideration of retrocausality, which is even more counter-intuitive, that may supercede it.
It’s a very intriguing article—what I can understand of it. I can’t help but wonder if the phenomenon of consciousness might play a vital role in nature. Maybe when a decision is consciously made to observe (follow) a particular path through reality, that entire path becomes “real” or illuminated. What we think of as a “past” event is just one of the cards in the deck that was chosen by universal consciousness.
From the last paragraph:
"In fact, the situation is really the same in all scientific experiments. There are a host of assumptions about the workings of the experimental apparatus that you have to accept in order to conclude that the experiment shows the effect you are looking for.“
In other words, everything we think we know rests on assumptions.
I believe there are verified experiments in quantum mechanics where the presence of an observer has been shown to make a difference. Too weird!
. . . a new wrinkle :
[theguardian.com]