Posted: Oct 08, 2017 9:45 am
John Platko wrote:For those less interested in fruit flies and more interested in retro causality this is interesting.
The appeal of retrocausality
First, to clarify what retrocausality is and isn't: It does not mean that signals can be communicated from the future to the past—such signaling would be forbidden even in a retrocausal theory due to thermodynamic reasons. Instead, retrocausality means that, when an experimenter chooses the measurement setting with which to measure a particle, that decision can influence the properties of that particle (or another particle) in the past, even before the experimenter made their choice. In other words, a decision made in the present can influence something in the past.
That is contradictory. I a decision can"influence something in the past" that is communicating to the past. From the perspective of the something it is influenced buy something in its future.