Skip to main content

This Quantum Theory Predicts That The Future Might Be Influencing The Past

One of the weirder aspects of quantum mechanics could be explained by an equally weird idea – that causation can run backwards in time as well as forwards.
What Einstein called “spooky” action at a distance could theoretically be evidence of retrocausality, which is the particle equivalent of you getting a stomach ache today thanks to tomorrow’s bad lunch.
A pair of physicists from the US and Canada took a closer look at some basic assumptions in quantum theory and decided unless we discovered time necessarily ran one way, measurements made to a particle could echo back in time as well as forward.
We all know quantum mechanics is weird. And part of that weirdness comes down to the fact that at a fundamental level, particles don’t act like solid billiard balls rolling down a table, but rather like a blurry cloud of possibilities shifting around the room.
This blurry cloud comes into sharp focus when we try to measure particles, meaning we can only ever see a white ball hitting a black one into the corner pocket, and never countless white balls hitting black balls into every pocket.
There is an argument among physicists over whether that cloud of maybes represents something real, or if it’s just a convenient representation.
A physicist by the name of Huw Price claimed back in 2012 that if the strange probabilities behind quantum states reflect something real, and if nothing restricts time to one direction, the black ball in that cloud of maybes could theoretically roll out of the pocket and knock the white ball.
“Critics object that there is complete time-symmetry in classical physics, and yet no apparent retrocausality. Why should the quantum world be any different?” Price wrote, paraphrasing the thoughts of most physicists.
Matthew S. Leifer from Chapman University in California and Matthew F. Pusey from the Perimeter Institute for Theoretical Physics in Ontario also wondered if the quantum world might be different when it comes to time.
The pair exchanged some of Price’s assumptions and applied their new model to something called Bell’s theorem, which is a big deal in this whole spooky action at a distance business.
John Stewart Bell said that the weird things that happen in quantum mechanics can’t ever be explained by actions taking place nearby. It’s as if nothing is causing the multitude of billiard balls to take such varied paths. At a fundamental level, the Universe is random.
But what about actions taking place somewhere else… or somewhen else? Can something far away influence that cloud without touching it, in a way that Einstein called “spooky”?
If two particles are connected in space at some point, measuring a property of one of them instantly sets the value for the other, no matter where in the Universe it has moved to.
This ‘entanglement’ has been tested over and over again in light of Bell’s theorem, plugging loopholes that might show they are really interacting on a local level in some way, in spite of what seems to be a distance.
As you might guess, the Universe still seems pretty spooky.
But if causality ran backwards, it would mean a particle could carry the action of its measurement back in time to when it was entangled, affecting its partner. No faster-than-light messages needed.
That’s the hypothesis Leifer and Pusey were going by.
“There is a small group of physicists and philosophers that think this idea is worth pursuing,” Leifer told Lisa Zyga at
By reformulating a few basic assumptions, the researchers developed a model based on Bell’s theorem where space was swapped for time. By their reckoning, unless we can show why time must always tick forward, we run into some contradictions.
Needless to say, the idea of retrocausality is a fringe idea.
“There is not, to my knowledge, a generally agreed upon interpretation of quantum theory that recovers the whole theory and exploits this idea. It is more of an idea for an interpretation at the moment, so I think that other physicists are rightly sceptical, and the onus is on us to flesh out the idea.”
Now keep in mind, this kind of backwards time travel isn’t the sort that would allow you to go back in time and consciously change the present, sorry to say. Future scientists also won’t be able to encode lottery numbers into entangled electrons and mail them back to their younger selves.
In any case, the idea of anything trickling backwards in time might not be an appealing one, but let’s face it, when it comes to phenomena like entanglement, nearly any explanation is going to sound downright insane.
This research was published in Proceedings of The Royal Society A.

Popular posts from this blog

Hidden Wiki

Welcome to The Hidden WikiNew hidden wiki url 2015 http://zqktlwi4fecvo6ri.onion Add it to bookmarks and spread it!!!
Editor's picks Bored? Pick a random page from the article index and replace one of these slots with it.
The Matrix - Very nice to read. How to Exit the Matrix - Learn how to Protect yourself and your rights, online and off. Verifying PGP signatures - A short and simple how-to guide. In Praise Of Hawala - Anonymous informal value transfer system. Volunteer Here are five different things that you can help us out with.
Plunder other hidden service lists for links and place them here! File the SnapBBSIndex links wherever they go. Set external links to HTTPS where available, good certificate, and same content. Care to start recording onionland's history? Check out Onionland's Museum Perform Dead Services Duties. Introduction - Clearnet search engine for Tor Hidden Services (allows you to add new sites to its database). DuckDuckGo - A Hidden S…


Good News [May 08, 2015]: IDM developers got smarter, but the crackers are always a step ahead. Follow this article and send an email to if you are desperate. I can NOT post any crack here for legal reasons. Happy Downloading with IDM. ;) *********** first tip is to use latest crack for idm from idm universal web crack and make sure u are using all latest vers I am sure many of us are too much dependent on Internet Download Manager a.k.a. IDM. The main reason didn’t permanently switch to linux was IDM. I mainly use it for batch downloading and download streaming videos. Till yesterday, IDM was working fine with me (of course with fake serial numbers, keygen, crack, patch etc. which could be found with little effort). But few days ago, with the latest update version 6.18 build 7 (released on Nov 09, 2013) Internet Download Manager was literally had a breakthrough and crushed all the serial numbers, …

Mouse, touchpad, and keyboard problems in Windows

Mouse, touchpad, and keyboard problems in Windows Introduction This tutorial is designed to help you identify and fix common mouse, touchpad, and keyboard problems in Windows. It doesn't cover device problems related to specific programs. Mouse, touchpad, and keyboard problems can have a number of causes: Cables that aren't connected properly Incorrect device settings Missing updates Corrupted or incompatible drivers Hardware problems Check hardware Many mouse, touchpad, and keyboard problems are caused by hardware that isn't set up properly. Here's some information about how to check your device, make sure cables are connected properly, make sure the hardware has power, and check the settings. Make sure cables are connected properly Check that all cables are plugged in to the correct locations. This can include mouse and keyboard, PS2 and USB cables, and, in some cases, external USB touchpad cables. Disconnect USB cables and wait for a short time for the device drive…