How can the past and the future be, when the past no longer is, and the future is not yet?
Time is one of the greatest mysteries of the universe. We are all swept up in the river of time against our will. From the movies Back to the Future and Déjà vu to the most recent Tomorrowland and Project Almanac, pop culture has embraced us to open the drapes of time travel. We use the world of Science Fiction to explore the fundamentals – and the limits – of the laws of physics as we know them today. But here’s the question: Is time travel beyond the realm of physical possibility? Let’s find out.
Time travel itself does have some science facts. Around the turn of the century, Einstein has shocked us with his theory of General Relativity. According to his theory, gravity affects time and space, so it…
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