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Time travel is possible – but only if you have an object with infinite mass


The concept of time travel has always captured the imagination of physicists and laypersons alike. But is it really possible? Of course, it is. We’re doing it right now, aren’t we? We are all traveling into the future one second at a time. But that was not what you were thinking. Can we travel much further into the future? Absolutely. If we could travel close to the speed of light, or in the proximity of a black hole, time would slow down enabling us to travel arbitrarily far into the future. The really interesting question is whether we can travel…

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