He argues that if a thin wormhole stays open long enough, people might send messages instantly through time using pulses of light.
Wormholes are theoretical tunnels that create shortcuts in space-time. Dr Luke Butcher at Cambridge University argues that if a thin wormhole stays open long enough, people could send messages through time using pulses of light. In theory, this light- called a photon - could carry a message to a distant past or future
WHAT IS A WORMHOLE?
Space-time can be warped and distorted. It takes an enormous amount of matter or energy to create such distortions, but theoretically, distortions are possible.
In the case of the wormhole, a shortcut is made by warping the fabric of space-time.
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