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We Already Know How to Build a Time Machine, Scientists Say

It’s just a matter of time before we build one that can take us into the far future.

UPDATED: DEC 28, 2022

Until the 20th century, time was believed to be completely immutable, and time travel a scientific impossibility. In the 1680s, Sir Isaac Newton’s thought time progressed at a consistent pace throughout the universe, regardless of outside forces or location. And for two centuries, the scientific world subscribed to Newton’s theory.

That is, until 26-year-old Albert Einstein came along.