From Newsgroup: sci.physics
On 11/23/25 09:56, Dawn Flood wrote:
On 11/23/2025 8:28 AM, Thomas 'PointedEars' Lahn wrote:
JTEM wrote:
Your real name isn't "Dawn" so you don't actually have to worry
about anyone rolling you in flour & looking for the wet spot...
Speaking of real names: What is yours?
Okay, so I cited the Delayed Choice Quantum Entanglement
experiment as an example of what people are calling
Retrocausality.
It is impossible to know to what citation you are referring as your
message
appears to be broken as it does not contain a References header field.
However, know that the (outcome of the) Delayed Choice Quantum _Eraser_
experiment is frequently misinterpreted even by some physicists.
There is
actually no retrocausality.
One example of a clarification comes from Sean Carroll (who does
research in
string theory):
https://www.preposterousuniverse.com/blog/2019/09/21/the-notorious-delayed-choice-quantum-eraser
HTH.
F'up2 sci.physics
Thank you for posting Professor Carroll's blog post.-a Such is a gentle reminder that Quantum Field Theory is really, really hard!!
Dawn
The basic problem with what is sometimes called 'Quantum Field
Theory' is that in mathematics there are coherent terms called
'point and curve' and those are different from the ill defined
gibberish called 'particle and wave'. The term 'particle' makes
people imagine magically created and destroyed marbles. There
is no evidence that momentum or energy is transferred until a
waveform collapses. If you stop imagining appearing and
disappearing marbles an interference pattern makes sense
from the two slit experiment.
This is all derived from the ill defined term 'particle' which
tends to make people think of magically appearing and disappearing
marbles at time and distance scales where those macroscopic
objects are questionable representations of what actually happens.
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