Archive for the ‘time travel’ category: Page 11

Dec 24, 2021

The quantum mechanics of time travel through post-selected teleportation

Posted by in categories: information science, quantum physics, time travel

This paper discusses the quantum mechanics of closed timelike curves (CTC) and of other potential methods for time travel. We analyze a specific proposal for such quantum time travel, the quantum description of CTCs based on post-selected teleportation (P-CTCs). We compare the theory of P-CTCs to previously proposed quantum theories of time travel: the theory is physically inequivalent to Deutsch’s theory of CTCs, but it is consistent with path-integral approaches (which are the best suited for analyzing quantum field theory in curved spacetime). We derive the dynamical equations that a chronology-respecting system interacting with a CTC will experience. We discuss the possibility of time travel in the absence of general relativistic closed timelike curves, and investigate the implications of P-CTCs for enhancing the power of computation.

Dec 24, 2021

Freaky Physics Proves Parallel Universes Exist

Posted by in categories: cosmology, quantum physics, time travel

Look past the details of a wonky discovery by a group of California scientists — that a quantum state is now observable with the human eye — and consider its implications: Time travel may be feasible. Doc Brown would be proud.

The strange discovery by quantum physicists at the University of California Santa Barbara means that an object you can see in front of you may exist simultaneously in a parallel universe — a multi-state condition that has scientists theorizing that traveling through time may be much more than just the plaything of science fiction writers.

And it’s all because of a tiny bit of metal — a “paddle” about the width of a human hair, an item that is incredibly small but still something you can see with the naked eye.

Dec 19, 2021

The Two-State Vector Formalism of Qauntum Mechanics: an Updated Review

Posted by in categories: quantum physics, time travel

In this paper we present the two-state vector formalism of quantum mechanics. It is a time-symmetrized approach to standard quantum theory particularly helpful for the analysis of experiments performed on pre-and post-selected ensembles. Several peculiar effects which naturally arise in this approach are considered. In particular, the concept of “weak measurements’’ (standard measurements with weakening of the interaction) is discussed in depth revealing a very unusual but consistent picture. Also, a design of a gedanken experiment which implements a kind of quantum “time machine’’ is described. The issue of time-symmetry in the context of the two-state vector formalism is clarified.

Dec 7, 2021

DeepMind’s AI Helped Crack Two Mathematical Puzzles That Stumped Humans for Decades

Posted by in categories: biological, information science, mathematics, robotics/AI, time travel

Working with two teams of mathematicians, DeepMind engineered an algorithm that can look across different mathematical fields and spot connections that previously escaped the human mind. The AI doesn’t do all the work—when fed sufficient data, it finds patterns. These patterns are then passed on to human mathematicians to guide their intuition and creativity towards new laws of nature.

“I was not expecting to have some of my preconceptions turned on their head,” said Dr. Marc Lackenby at the University of Oxford, one of the scientists collaborating with DeepMind, to Nature, where the study was published.

The AI comes just a few months after DeepMind’s previous triumph in solving a 50-year-old challenge in biology. This is different. For the first time, machine learning is aiming at the core of mathematics—a science for spotting patterns that eventually leads to formally-proven ideas, or theorems, about how our world works. It also emphasized collaboration between machine and man in bridging observations to working theorems.

Dec 6, 2021

Is time travel possible?

Posted by in category: time travel

“Is time travel possible?”

July 7, 2021

If you can time travel, please tell Stephen Hawking we said hi.

Nov 27, 2021

Time: Do the past, present, and future exist all at once? | Big Think

Posted by in categories: alien life, information science, mobile phones, neuroscience, physics, robotics/AI, time travel

Watch the newest video from Big Think:
Learn skills from the world’s top minds at Big Think+:

Everything we do as living organisms is dependent, in some capacity, on time. The concept is so complex that scientists still argue whether it exists or if it is an illusion. In this video, astrophysicist Michelle Thaller, science educator Bill Nye, author James Gleick, and neuroscientist Dean Buonomano discuss how the human brain perceives of the passage of time, the idea in theoretical physics of time as a fourth dimension, and the theory that space and time are interwoven. Thaller illustrates Einstein’s theory of relativity, Buonomano outlines eternalism, and all the experts touch on issues of perception, definition, and experience. Check Dean Buonomano’s latest book Your Brain Is a Time Machine: The Neuroscience and Physics of Time at

Continue reading “Time: Do the past, present, and future exist all at once? | Big Think” »

Nov 21, 2021

How we could Time Travel through a (special) black hole — Back to the PAST!

Posted by in categories: cosmology, information science, singularity, space travel, time travel

Get your SPECIAL OFFER for MagellanTV here: — It’s an exclusive offer for our viewers! Start your free trial today. MagellanTV is a new kind of streaming service run by filmmakers with 3,000+ documentaries! Check out our personal recommendation and MagellanTV’s exclusive playlists:

0:00 — You are a time traveler.
2:32 — Spacetime & light cone review.
6:15 — Flat Spacetime equations.
7:03 — Schwarzschild radius, metric.
8:42 — Light cone near a black hole.
10:15 — How to escape black hole.
10:39 — Kerr-Newman metric.
11:34 — How to remove the event horizon.
11:50 — What is a naked singularity.
12:20 — How to travel back in time.
13:26 — Problems.

Continue reading “How we could Time Travel through a (special) black hole — Back to the PAST!” »

Nov 20, 2021

This Mysterious Computer Could Prove Time Travel Exists | Nostalgia Nerd

Posted by in categories: computing, time travel, transportation

Go to and use code NERD to save 25% off today, that’s only $14.99 a year. Thanks to Curiosity Stream for sponsoring today’s video. ~ In 1984 something strange happened in the village of Dodleston. A BBC Micro was sitting on a counter, when it suddenly started receiving mysterious messages, which appeared to come from the 16th century. This might have gone unnoticed had local teachers, Ken Webster and Peter Trinder, not investigated to find that information was so accurate, it would be almost impossible to fake. This whole event was documented in the book “The Vertical Plane”, published in 1989. But here, tonight, we investigate deep to find out exactly what this is all about.

Thank you to these excellent peeps. Please check out their channels;
Octavius King:
Slope’s Game Room:

Continue reading “This Mysterious Computer Could Prove Time Travel Exists | Nostalgia Nerd” »

Oct 7, 2021

What Would Happen If Humanity Became a Type V Civilization?

Posted by in categories: cosmology, time travel

Spoiler: We are still a ‘Type Zero’ civilization.

The Kardashev scale was extended to accommodate type IV and V civilization. Energy output in type V civilization would be tremendous. Possible wormholes, time travel, and teleportation. Breaking the second law of thermodynamics would be the easiest way to progress. Maxwell’s demon thought experiment presents this hypothesis.

Oct 2, 2021

A Biological ‘Time Machine’ With Human Cells Can Help Reverse Cancer

Posted by in categories: biotech/medical, engineering, genetics, time travel

And, depending on how further studies progress, it could be implemented via gene therapy.

Early-stage pancreatic cancer has a ‘reset button’

Continue reading “A Biological ‘Time Machine’ With Human Cells Can Help Reverse Cancer” »

Page 11 of 24First89101112131415Last