In Beyond Science, Epoch Times explores research and accounts related to phenomena and theories that challenge our current knowledge. We delve into ideas that stimulate the imagination and open up new possibilities. Share your thoughts with us on these sometimes controversial topics in the comments section below.
If a person travels back in time and kills her own mother, well that’s pretty sinister—but it also creates for her an existential paradox. How does she exist if her mother doesn’t give birth to her?
Quantum computing theory was plagued by a similar paradox. It could be used to solve very complex mathematical problems, but to do so could seriously mess with time.
An international team of scientists has developed a way, however, for quantum computing to use time travel without breaking causality. Theypublished their study Nov. 24 in the journal Quantum Information.
The key is using open timelike curves (OTCs) instead of closed timelike curves (CTCs). Both are time-loops, which are made possible within Albert Einstein’s General Relativity theory by traveling through wormholes.
The CTCs create causal paradoxes, similar to the woman killing her mother in the past. This happens because an object entering a wormhole can interact with causal factors in its own past. But, in the case of OTCs, the object cannot interact with those factors.
“[It] is completely isolated from anything that can affect its own causal past during the time-traveling process,” the study states. “This naturally occurs, for example, in instances where the wormhole mouths are spatially separated.” [See a diagram here]
So how does this help solve complex equations?
Foundational constraints of quantum theory are broken. For example, “the uncertainty principle can be violated, and arbitrary unknown quantum states can be cloned to any fixed fidelity,” the study explains. Scientists are able to bend the rules that make solving some equations seemingly impossible, thus making the solutions possible.
Before the recent findings, it was thought that this rule-bending brought with it the paradox of broken causality.
With OTCs, however, the study explains: “The time-traveling particle has the potential to break causality, [but] its complete isolation ensures that causality never actually breaks.” The rules can still be bent to solve the equations, but the paradox of broken causality is avoided.
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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.
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.
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Care to start recording onionland's history? Check out Onionland's Museum Perform Dead Services Duties.
Introduction PointsAhmia.fi - Clearnet search engine for Tor Hidden Services (allows you to add new sites to its database).
DuckDuckGo - A Hidden S…
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Mouse, touchpad, and keyboard problems in Windows
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
Corrupted or incompatible drivers
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…