I have been told that scientist have reliably shown an expirment that violates causality. In the story, 2 parameters related to the position and momentum of the particles in the experiement are measured as to violate the HUP(1). One of the results(call it result A) is predicable and the other (call it result B) is random. The scientist found that when they LOOK at the A first it comes out as expected. but when the LOOK at B first, then A comes out way off.

i.e. **looking** at the results of B changes the results of A **after the expiriment is over**.

The only classical explaination of this that I can think of is: God is taunting us.

But I suppose this borrows something from schrodeingers cat. The results of A and B being both corrected and hosed until someone looks at them, then the probability wave collapses.

Can anyone verify this story and give the details of the expiriment?

(1) The Hiesenberg(sp) Uncertainty Pricipal goes something like: measurements of the momentum and position of a quanta must have a combined uncertainty no less than some constant. Measuring the position of a paritcal corrupts its momentum information, and measuring the momentum, smears the partical all over space-time. I have NFC how Heisy derived this, and I’m not sure I want to know.