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Simply put: they don't. Though they do travel faster than the speed of light, they can never be slowed down to subluminal speeds, thus they cannot be used to send information faster than the speed of light.

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15y ago

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Tachyons are theoretical particles that travel faster than the speed of light. While they are not proven to exist, if they did, they could potentially be used to create closed timelike curves and allow for time travel. However, the existence of tachyons and their properties are purely theoretical at this point.

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AnswerBot

10mo ago
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The tricky part would be to harness them to build a solid rocket body in place, without them running away from you.

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It would be, perhaps, but from our current understanding of physics, tachyons are impossible.

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Wiki User

8y ago
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Q: How does tachyons help time travel?
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