2024 Is it possible to time travel - Theoretically, time travel is possible if the universe follows the laws of thermodynamics and special relativity. However, it is also possible …

 
But while it is possible to describe this type of time travel using maths, and the pair insists the maths is sound, Tippett doubts a machine will ever make it work. "HG Wells popularised the term .... Is it possible to time travel

Smoke was seen billowing from the hot lava (Picture: Getty) Yes, it is still safe to travel to Iceland, but travellers are urged to check government websites …Secondly, there are no stories related to time travel, because time travel is actually not possible, you can only give optimistic results of future dependent on the Karmas, Planets and other things. Share. Improve this answer. Follow edited Aug 22, 2014 at 7:31. Mr_Green. 11.6k 30 30 gold badges 86 86 …Volcanic eruptions can pose a serious hazard to air travel as ash released into the atmosphere can cause jet engines to fail, damage flight control …Einstein's theory of relativity suggests that it may be feasible to travel backwards in time by following a "space-time path" that doubles back and returns to .....Other theories maintain that the Grandfather Paradox just goes to show you that time travel isn’t possible at all. The past cannot be changed; somehow, the universe would course-correct before you could ever have a chance to alter the past. In short, you might find that your time machine simply won’t work, the ultimate universal safety …Jan 3, 2023 · Print. Black holes form natural time machines that allow travel to both the past and the future. But don’t expect to be heading back to visit the dinosaurs any time soon. At present, we don’t ... Dec 15, 2023 · Time travel is the concept of moving between different points in time, just like you move between different places. ... Will it ever be possible for time travel to occur? – Alana C., age 12 ... Apr 25, 2022 · Time travel and parallel timelines almost always go hand-in-hand in science fiction, but now we have proof that they must go hand-in-hand in real science as well. General relativity and quantum ... Time travel is real. To answer the burning question: Yes, time travel is possible. However, not in the way you think. In fact, you’re time travelling right now. As you’re reading this, you’re hurtling through time at the speed of one second per second. You’re constantly travelling through time, even when you’re sitting in that extra ...Why we think time travel is possible. Time travel's been one of man's wildest fantasies for centuries. But in the last century scientists came up with theories that suggested it was indeed ...In the original 1978 Superman film, Superman goes back in time by flying around the globe faster than the speed of light. This is incredibly fast – the speed of light is just under 300,000 km per second! So far, we have not come even close to this speed, the fastest man-made object, a space probe, traveled at just 150 km per second.Aug 10, 2016 ... Time travel to the past requires both a sending device in the future and a receiving device in the past. Without both in place, no backwards ...Time travel is possible, but it’s a one-way ticket. The ability to travel through time, whether it is to fix a mistake in the past or gain insight into the future, has long been embraced by science fiction and debated by theoretical physicists. While the debate continues over whether travelling into the past is possible, physicists have ...Though time travel is still not possible, a new discovery raises its prospects. ... But if something can travel faster than light, it can travel backward in time, according to the theory. In this ...I'm finally traveling the world now that I'm in my 60s. Bradley Carroll. I grew up living paycheck to paycheck and working my whole life, but I always …1. Time travel via speed. This is the easiest and most practical way to time travel into the far future – go really fast. According to Einstein’s theory of …Feb 16, 2013 ... The basic problem with time travel to the past is conservation of energy. For example, pretend I made a time travel portal that sends objects ...So for practical purposes, time travel’s time has not yet arrived. But even if it’s possible only in principle, the potential ramifications for the basic physics of the universe might make it ...Oct 18, 2019 ... But going back in time? Not really. It's been theorized. As you speed up and get closer to the speed of light, time slows down. If you go at the ...GPS satellite clocks are about 3 8 seconds longer per day than a clock closer to earth due to the gravitational frequency shift. They make up for this discrepancy by using time travel calculations or they could be way off from your current location and time. Time travel is a concept that has existed in science-fiction for hundreds of years ...But, mathematically, it is possible." It's a finding that's sure to inject new energy and vigor into late-night, half-sober arguments about the morality of traveling back in time to assassinate ...Time travel has been a popular science-fiction theme since H. G. Wells wrote his celebrated novel The Time Machine in 1895. But can it really be done? ... If unrestricted time travel were possible ...The purpose of this paper is to explain in detail the concept of time travel, also how it was popularized, and lastly, the theories presented to make it possible and what impact it will have if ...Time travel may sound far-fetched, but scientists are already exploring several mysteries of nature that could one day see Ron's dream fulfilled. ... But Einstein also thought it was possible to ...Mar 15, 2010 ... According to his Special Theory of Relativity of 1905, you would slow down in time the faster you moved. Hence, a clock orbiting in space would ...Dec 11, 2009 ... Time travel ... As long as we continue to think of the 'arrow of time' time travel will not be achieved, at least not in the sense we wish. For ...Is it actually possible to travel through time? Scientists say "Yes", but what does that actually mean? Check out today's insane time-warping new video to di...Yes, time travel is indeed a real thing. But it's not quite what you've probably seen in the movies. Under certain conditions, it is possible to experience time passing at a different rate than 1 second per second. And there are important reasons why we need to understand this real-world form of time travel. See moreWe would like to show you a description here but the site won’t allow us.Time Travel to the Past is Not Possible. As of now, there are no records of someone in the past or the future visiting the present despite people's fascination with the idea of time travel.Apr 24, 2022 · Time travel and parallel timelines almost always go hand-in-hand in science fiction, but now we have proof that they must go hand-in-hand in real science as well. General relativity and quantum ... The best answer science can give us right now is: it's theoretically possible. But, no one has done it. Traveling Into the Past. It turns out that …Time Travel is defined as the phenomenon of moving between different points in time through a hypothetical device called “Time Machine”. Despite being predominantly related to the field of philosophy and fiction, it’s somehow supported to a small extent by physics in conjunction with quantum mechanics. However, before getting into the ...Black holes form natural time machines that allow travel to both the past and the future. But don’t expect to be heading back to visit the dinosaurs any time soon. At present, we don’t have ...But he was also right that asking whether time travel is possible is a “very serious question” that can still be approached scientifically.Time Travel is defined as the phenomenon of moving between different points in time through a hypothetical device called “Time Machine”. Despite being predominantly related to the field of philosophy and fiction, it’s somehow supported to a small extent by physics in conjunction with quantum mechanics. However, before getting into the ...Dec 28, 2020 · Scientific theories suggest it’s possible to travel through time. But the reality isn’t so clear. Time travel has fascinated scientists and writers for at least 125 years. The concept feels ... The Short Answer: Although humans can't hop into a time machine and go back in time, we do know that clocks on airplanes and satellites travel at a different speed than those on Earth. We all travel in time! We travel one year in time between birthdays, for example. And we are all traveling in time at approximately the same speed: 1 second …The wormhole theory postulates that a theoretical passage through space-time could create shortcuts for long journeys across the universe. Wormholes are predicted by the theory of general ...In fact, not only is time travel possible, it’s already happened—it just doesn’t look like your typical sci-fi film. Returning to our time-traveling cosmonaut Padalka, his 1/44th-second jump ...1 To travel backward in time, the spacecraft’s velocity must exceed: where u is the velocity of the planet relative to Earth, and c is the speed of light. Seth Lloyd, professor of quantum ...Time travel is the concept of moving between different points in time, but it may not be possible due to the laws of thermodynamics and relativity. Learn …Kia, Subaru and Mitsubishi also contribute to the LexisNexis “ Telematics Exchange ,” a “portal for sharing consumer-approved connected car …Apr 28, 2022 ... Time travel and parallel timelines almost always go hand-in-hand in science fiction, but now we have proof that they must go hand-in-hand in ...Time travel has been a popular science-fiction theme since H. G. Wells wrote his celebrated novel The Time Machine in 1895. But can it really be done? ... If unrestricted time travel were possible ...In this weekly series, Life's Little Mysteries rates the plausibility of popular science fiction concepts. In the first "Back to the Future" movie, all it took to travel through time was 1.21 ...1 To travel backward in time, the spacecraft’s velocity must exceed: where u is the velocity of the planet relative to Earth, and c is the speed of light. Seth Lloyd, professor of quantum ...A Scientist Says Time Travel Is Possible With Ring Lasers. Ronald Mallett is still working on rotating lasers to travel back in time. His working theory is based on Albert Einstein’s relativity discussion. The prototype laser loop he developed ends up bending time, hypothetically allowing movement back—at the farthest—to the moment the ...GPS satellite clocks are about 3 8 seconds longer per day than a clock closer to earth due to the gravitational frequency shift. They make up for this discrepancy by using time travel calculations or they could be way off from your current location and time. Time travel is a concept that has existed in science-fiction for hundreds of years ...Sep 24, 2020 ... In curved spacetime, there is the effect of gravitational time dilation. Clocks tick slower near massive bodies than far away from them. In ...Feb 8, 2008 ... "Time travel into the future is absolutely possible, in fact time passes at a different rate in orbit than it does on the ground, and this has ...Nov 29, 2022 ... Since relativity is our most profound theory of time, we would like to argue that time travel is forbidden by relativity.May 14, 2020 ... Time travel into the future is totally possible ... Believe it or not, time travel is possible. In fact, you're doing it right now. Every single ...It was, he said, "a welcome reception for future time travelers," a tongue-in-cheek experiment to reinforce his 1992 conjecture that travel into the past is effectively impossible. But Hawking may ...Apr 26, 2023 · The laws of physics allow time travel, but the details are complex and paradoxical. Learn about the theories, scenarios and challenges of traveling to the past or future. The short answer is No. However, we understand from multiple experiments that time works differently on satellites and airplanes than those on earth, and speed seems to slow down the …This means that our time traveler can’t get back to Earth 1. If Susan attempts to travel back in time to 1963 to prevent the death of her grandfather, she creates a third world — Earth 3 ...We would like to show you a description here but the site won’t allow us.So for practical purposes, time travel’s time has not yet arrived. But even if it’s possible only in principle, the potential ramifications for the basic physics of the universe might make it ... No, things go the speed of light all the time (massless particles), and they don't time travel. I suppose for an object with mass to reach the speed of light, it would have to break the laws of physics. So if you're going around breaking laws of physics, then sure, might as well go back in time too. But as far as the maths go - if something ... Nov 14, 2023 · There's a classic short story by Ted Chiang in which a young merchant travels years ahead and meets his future self. Over the course of the story, the man receives warnings, promises and tips from ... Time travel is real. To answer the burning question: Yes, time travel is possible. However, not in the way you think. In fact, you’re time travelling right now. As you’re reading this, you’re hurtling through time at the speed of one second per second. You’re constantly travelling through time, even when you’re sitting in that extra ...But we experience time unidirectionally because molecules tend to move from higher to lower states of order, as Quanta Magazine outlines — i.e., "Time's Arrow." Putting these two together means: 1) No one refutes that forward-moving time travel is possible, and, 2) Backward-moving time travel is impossible.Time travel is not only possible, it has already happened, though not exactly as Wells imagined. The biggest time traveler to date is Sergei K. Krikalev, according to J. Richard Gott, an ...Apr 4, 2021 ... If time travel will be possible, why hasn't someone come back from the future to tell us how to do it? I was very pleased to find Stephen ...November 16, 2020 Science Borealis. Chenoa van den Boogaard, Physics and Astronomy editor. The ability to travel through time, whether it is to fix a mistake …In this explainer, we'll dive into the theories, possibilities, and paradoxes surrounding the question of whether time travel is possible. To contemplate time travel, we must first understand time ...Paradox-Free Time Travel Is Theoretically Possible, Researchers Say. September 27, 20208:44 PM ET. Matthew S. Schwartz. Enlarge this image. …Time travel is a staple of science fiction stories, but is it actually possible? It turns out nature does allow a way of bending time, an exciting possibility suggested by Albert Einstein when he discovered special relativity over one hundred years ago. Colin Stuart imagines where (or, when) this fascinating phenomenon, time dilation, may one day take us.The laws of physics allow time travel, but the details are complex and paradoxical. Learn about the theories, scenarios and challenges of traveling to the past or future.Nov 17, 2023 ... Interestingly, astrophysicists armed with powerful telescopes possess a unique form of time travel. As they peer into the vast expanse of the ...Feb 16, 2013 ... The basic problem with time travel to the past is conservation of energy. For example, pretend I made a time travel portal that sends objects ...Oct 23, 2016 · Time travel is also a powerful way of allowing us to imagine what the future might bring. A lot of futurists nowadays tend to be dystopian. Time travel gives us ways of exploring how the worst ... $\begingroup$ If someone were to travel back from the future surely it would have consequences, so maybe in the future we determine it is possible, but noone does it because if you step on a fly it could lead to someone not doing of malaria (or etc) and then in the future you have an extra thousand people descanding from that …Apr 26, 2023 · The laws of physics allow time travel, but the details are complex and paradoxical. Learn about the theories, scenarios and challenges of traveling to the past or future. Are you planning a trip from Bangalore to Mysore and wondering about the train timings? Look no further. In this article, we will provide you with valuable insights on Bangalore to...A longtime advocate for time travel is back in the public eye with his theory of looping time using lasers. Some experts theorize that technology, like extreme acceleration, will enable time ...A Scientist Says Time Travel Is Possible With Ring Lasers. Ronald Mallett is still working on rotating lasers to travel back in time. His working theory is based on Albert Einstein’s relativity discussion. The prototype laser loop he developed ends up bending time, hypothetically allowing movement back—at the farthest—to the moment the ...Is it possible to time travel

NASA asserts time travel is possible through time dilation, tied to Albert Einstein's theory of relativity - which states that time and space are intertwined, with the speed of light serving as an unbreakable cosmic speed limit. Credit: Times Now Digital. Spacetime Manipulation Possibilities. Time dilation depends on one's motion or location, …. Is it possible to time travel

is it possible to time travel

Jan 16, 2021 · Whether time travel is possible is among the most intriguing questions in all of science. Neil deGrasse Tyson explains how time travel into the future is pos... Jun 16, 2020 ... As far as we know, travelling back in time is impossible. Even sending information back in time is difficult to imagine, because it can change ...Travel goal: As she prepared for surgery after a horrific car accident, Pamela Holt, originally from California, vowed that she would travel to 80 …But we experience time unidirectionally because molecules tend to move from higher to lower states of order, as Quanta Magazine outlines — i.e., "Time's Arrow." Putting these two together means: 1) No one refutes that forward-moving time travel is possible, and, 2) Backward-moving time travel is impossible.We would like to show you a description here but the site won’t allow us.Nov 29, 2022 ... Since relativity is our most profound theory of time, we would like to argue that time travel is forbidden by relativity.Mar 4, 2023 · The approach of two such strings parallel to every other would bend space-time so hard and in such a configuration that may make time travel possible in theory too. Infinite cylinder: Astronomer Frank Tipler proposed a mechanism known as Tipler Cylinder, where one would take matter 10 times the sun’s mass and then roll it into a very dense ... Dec 28, 2020 · Scientific theories suggest it’s possible to travel through time. But the reality isn’t so clear. Time travel has fascinated scientists and writers for at least 125 years. The concept feels ... Nov 28, 2023 · According to NASA, time travel is possible, just not in the way you might expect. Albert Einstein’s theory of relativity says time and motion are relative to each other, and nothing can go ... No, things go the speed of light all the time (massless particles), and they don't time travel. I suppose for an object with mass to reach the speed of light, it would have to break the laws of physics. So if you're going around breaking laws of physics, then sure, might as well go back in time too. But as far as the maths go - if something ...The first 100 people to use code UNIVERSE at the link below will get 60% off of Incogni: https://incogni.com/universe-----...Yes, time travel is indeed a real thing. But it's not quite what you've probably seen in the movies. Under certain conditions, it is possible to experience time passing at a different rate than 1 second per second. And there are important reasons why we need to understand this real-world form of time travel. See moreThe new research smooths out the problem with another hypothesis, that time travel is possible but that time travellers would be restricted in what they did, to stop them creating a paradox. In this model, …The answer is yes, no and maybe. Yes, time travel already exists in minute provable forms. Maybe, future scientists will be able to take the same principles and apply them on a grander scale. No ...It's possible to theoretically model, simulate, and observe the backwards flow of time in ways that are impossible to achieve in the real world. And now, scientists have shown that simulations of backwards time travel can help solve physics problems that cannot be resolved with normal physics. Led by physicist David Arvidsson-Shukur of ...“Time travel stories that are used in movies and fiction are mostly incoherent.” ... And it’s just possible that we could fast-forward that process through the phenomenon of time dilation. According to Einstein’s theory of special relativity, time passes at different rates depending on relative motion. A spacefarer moving at close to the …I’ve been writing quite a bit about the challenges of traveling during pandemic times for the last few months. But as the end of the year approaches and the holiday season is in fu...That hasn't stopped physicists from imagining the possibilities in a world where faster-than-light travel is possible. If the neutrino experiment is confirmed, it opens the door to at least ...Are you a frequent traveler or a digital nomad who often finds yourself struggling with time zone differences? If so, you’re not alone. Navigating time differences can be a challen...Check out Robert's book "Faster Than Light" https://www.amazon.com/Faster-than-Light-Your-Shadow/dp/1662933843/Kindle: https://www.amazon.com/Faster-than-L...The simplest answer is that time travel cannot be possible because if it was, we would already be doing it. One can argue that it is forbidden by the laws of physics, like the second law of ...Time travel is possible – but only if you have an object with infinite mass. Dec 13, 2018. Generalized Hardy's paradox shows an even stronger conflict between quantum and classical physics.Time Out's list of world's best streets has been released. At number one is High Street, Melbourne, Australia, praised for its buzzy vibe and community …May 14, 2020 ... Time travel into the future is totally possible ... Believe it or not, time travel is possible. In fact, you're doing it right now. Every single ...The 1921 UK Census is now available to the public for free, giving everyone the opportunity to take a trip back in time and explore their family history. The 1921 UK Census is an i...Planning a holiday can be an exciting experience, but it can also be overwhelming. With so many options available and various aspects to consider, finding the best holiday travel a...1 Answer. Sorted by: 1. In special relativity the answer is simple: no, you can't (unless the universe is topologically strange). For general relativity the answer is more complicated: it is possible to construct spacetimes with what are called 'closed timelike loops': curves which are timelike (ie where the curve lies …The new research smooths out the problem with another hypothesis, that time travel is possible but that time travellers would be restricted in what they did, to stop them creating a paradox. In this model, …Time travel could also be possible if you traveled around two colliding cosmic strings, traveled through a spinning black hole, or stretched space via negative matter.Paradox-free time travel is theoretically possible, according to the mathematical modeling of a prodigious University of Queensland (UQ) undergraduate student. Fourth-year Bachelor of Advanced Science (Honours) student Germain Tobar has been investigating the possibility of time travel, under the supervision of UQ physicist Dr. Fabio Costa.That kind of time travel is mathematically discovered to be possible, which is pretty cool. The film Interstellar shows that really well with the time dilation that occurs due to gravity. Could we do that same experiment …Apr 12, 2014 ... If we might be able to travel forward in time, what about going back in time? Brian Greene explains this unsettled possibility.Theoretically, time travel is possible if the universe follows the laws of thermodynamics and special relativity. However, it is also possible …I'm finally traveling the world now that I'm in my 60s. Bradley Carroll. I grew up living paycheck to paycheck and working my whole life, but I always …Aug 22, 2016 · Scientists are trying to figure out if time travel is even theoretically possible. If it is, it looks like it would take a whole lot more knowledge and resources than humans have now to do it. Time travel is not only possible, it has already happened, though not exactly as Wells imagined. The biggest time traveler to date is Sergei K. Krikalev, according to J. Richard Gott, an ...1. Time travel via speed. This is the easiest and most practical way to time travel into the far future – go really fast. According to Einstein’s theory of …Time Out's list of world's best streets has been released. At number one is High Street, Melbourne, Australia, praised for its buzzy vibe and community …Researchers have discovered that it’s possible to speed up, slow down, or reverse the flow of time in a quantum system. This isn’t exactly time travel, but is instead implementing or reverting ...If you’re looking to save time and money when cruising, these tips will help you out! From packing smart to avoiding expensive scams, these tips will make your MSC cruise experienc...For centuries, the concept of time travel has captivated people’s imaginations. Time travel is the concept of moving between different points in time, just like you move between different places.A key philosophical text on time travel is Lewis 1976 and its argument for the logical possibility of certain backward time travel journeys and even for the possibility of casual loops. Lewis concludes that time travel could occur in a possible world, albeit perhaps a strange world that would feature (or seem to feature) strange restrictions on ...May 15, 2023 · And we move through space in all directions just fine, and according to physics, travel through time should be just as possible. One way that people have looked into is via a wormhole—a shortcut ... And if time travel were shown to possible in principle, the amount of energy required to create the conditions for time travel would likely be greater than the total energy available on Earth. At ...Time travel is possible, but it’s a one-way ticket. The ability to travel through time, whether it is to fix a mistake in the past or gain insight into the future, has long been embraced by science fiction and debated by theoretical physicists. While the debate continues over whether travelling into the past is possible, physicists have ...Is it actually possible to travel through time? Scientists say "Yes", but what does that actually mean? Check out today's insane time-warping new video to di...But he was also right that asking whether time travel is possible is a “very serious question” that can still be approached scientifically.Jun 6, 2022 · Traveling into the future is possible, but scientists do not know if backward time travel is possible. Currently, the only theoretical way to travel backward in time would be through a wormhole. A wormhole is a theoretical bridge between two points of space and time. Unfortunately, there is no evidence that wormholes exist, and if they do, they ... And if time travel were shown to possible in principle, the amount of energy required to create the conditions for time travel would likely be greater than the total energy available on Earth. At ...New research suggests that it might be possible to build warp drives and beat the galactic speed limit. Faster than light travel is the only way humans could ever get to other stars in a ...The Short Answer: Although humans can't hop into a time machine and go back in time, we do know that clocks on airplanes and satellites travel at a different speed than those on Earth. We all travel in time! We travel one year in time between birthdays, for example. And we are all traveling in time at approximately the same speed: 1 second …Believe it or not, time travel is possible. In fact, you're doing it right now. Every single second of every single day, you are advancing into your own …Time travel then is merely an issue of which universe we’re operating in. If we happen to be operating in the physical one, then time has its way with us. But when we’re operating in the spiritual one, time loses its control over us. When we travel in the spirit, whether in a dream, by translation, translocation, or in a …Time travel then is merely an issue of which universe we’re operating in. If we happen to be operating in the physical one, then time has its way with us. But when we’re operating in the spiritual one, time loses its control over us. When we travel in the spirit, whether in a dream, by translation, translocation, or in a …In an influential essay published in 1976, he set out his stall unequivocally: "Time travel, I maintain, is possible." Using the rigorous …View full lesson: http://ed.ted.com/lessons/time-travel-and-einstein-s-special-relativity-colin-stuartTime travel is a staple of science fiction stories, but...Check details. This cool theory of a rotating universe highlights how time travel to the past could be possible. (Pixabay) We have all watched movies that deal with the subject of time travel. Most of the time, such movies use an exotic element of physics, such as wormholes, faster-than-light speed (warp drives) and …Sep 16, 2013 · The Bible Says Time Travel Is Possible. Of all the things I look forward to about getting into Heaven – yes I am going to be there and if you’re not sure message me and I will help you – one of the most exciting things for me has got to be the ability to time travel. This has long been something that man has dreamed of doing. Smoke was seen billowing from the hot lava (Picture: Getty) Yes, it is still safe to travel to Iceland, but travellers are urged to check government websites …If time travel into the past were possible, then you could (if you really wanted to) travel into the past to a time before your parents were born and kill your Grandfather. Then your parent would never be born, so neither would you, so you couldn’t travel into the past to kill your Grandfather after all… Because paradoxes …Time travel could also be possible if you traveled around two colliding cosmic strings, traveled through a spinning black hole, or stretched space via negative matter.Oct 14, 2022 ... Nasa theorized that time travel is possible with an experiment on twin brothers, Astronaut Scott Kelly aged milliseconds less than his twin ...So for practical purposes, time travel’s time has not yet arrived. But even if it’s possible only in principle, the potential ramifications for the basic physics of the universe might make it ...Jul 11, 2018 · Time travel may sound far-fetched, but scientists are already exploring several mysteries of nature that could one day see Ron's dream fulfilled. ... But Einstein also thought it was possible to ... The idea of travelling at the speed of light is an attractive one for sci-fi writers. The speed of light is an incredible 299,792,458 meters per second. At that speed, you could circle Earth more than seven times in one second, and humans would finally be able to explore outside our solar system. In 1947 humans first surpassed the (much slower ... Apr 24, 2022 · Time travel and parallel timelines almost always go hand-in-hand in science fiction, but now we have proof that they must go hand-in-hand in real science as well. General relativity and quantum ... Planning a holiday can be an exciting experience, but it can also be overwhelming. With so many options available and various aspects to consider, finding the best holiday travel a...Apr 26, 2022 · Time travel and parallel timelines almost always go hand-in-hand in science fiction, but now we have proof that they must go hand-in-hand in real science as well. General relativity and quantum mechanics tell us that time travel might be possible, but if it is, then multiple histories must also be possible. On Date October 16, 2023. Is Time Travel Possible? Here's What Physics Says. Share. Watch on. (via Sabine Hossenfelder) What does physics say about time travel? Surprisingly enough it doesn't just say it's impossible, it's more complicated than that. In this video I'll sort out what Einstein's general relativity and quantum mechanics tell us .... Betis vs. barcelona