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From TikTok videos to sci-fi movies there are all sorts of stories of time travel out there, but NASA has explained how the practise is actually possible.
Earlier this week, a so-called 'time traveller' claimed to know the result of the 2022 World Cup, which is currently only in its early stages in Qatar.
They shared a video alleging Brazil will beat France to become the winners, though obviously they could only know this for sure if they really were from the future.
Naturally, then, this raised a few eyebrows, given that the rest of us are apparently living a couple of weeks behind them.
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However, NASA has explained that actually, 'we all travel in time'.
Although 'we are all traveling in time at approximately the same speed: 1 second per second', the space agency has described that 'science' says the type of time travel seen in 'movies or science fiction books' could be real.
Scientists have done experiments to show that the faster you travel, the slower you experience time. This was proven by one experiment which looked at two clocks: one which stayed on Earth, and the other which flew in an aeroplane.
After the plane flew around the world, scientists compared the clocks and found that the one on the fast-moving plane was slightly behind the clock on the ground, meaning it was travelling slightly slower in time than one second per second.
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NASA concluded: "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."
So, while it's not entirely unreasonable for someone who's just hopped off a plane to claim they're a time traveller, we're not at a point where we can hop forwards weeks at a time - no matter what the 'World Cup Time Traveller' might want us to believe.
The TikToker received mixed responses after sharing their claims alongside alleged 'footage' of Brazil's win, with one viewer appearing convinced as they responded: "Why does it look so … real."
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However, another pointed out that they'd just seen another 'time traveller' claiming 'Portugal and Mexico were gonna be in the finals', so it seems like people are really just taking a stab in the dark.
In reality, the only way we're going to find out who's in the final is by waiting for that moment - though you might have to wait a little bit longer if you're on a plane.
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Emily Brown