Time travel: five ways that we could do it

Time travel: five ways that we could do it

In 2009 the British physicist Stephen Hawking held a party for time travellers – the twist was he sent out the invites a year later (No guests showed up). Time travel is probably impossible. Even if it were possible, Hawking argued that you could never travel back before the moment your time machine was built.

Time travel via speed

The easiest and most practical way to time travel into the far future is to go really fast

Time travel via wormholes

Many physicists believe wormholes are constantly popping in and out of existence at the quantum scale, far smaller than atoms.

Time travel using light

Another time travel idea put forward by Ron Mallet is to use a rotating cylinder of light to twist spacetime.

Time travel via gravity

According to his theory of general relativity, the stronger the gravity you feel, the slower time moves.

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Time travel via suspended animation

Another way to time travel to the future may be to slow your perception of time by slowing down, or stopping, your bodily processes and then restarting them later.

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