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originally posted by: buster2010
originally posted by: Rob48
originally posted by: Jonjonj
There is a maxim that says-once time travel is discovered it will have existed for all time-the logic of this seems irrefutable to me
Which therefore suggests that time travel will never be discovered, otherwise we would already know about it.
You wouldn't want to let people know about time travel before it exists because you could create a temporal paradox.
“We see in our simulation (as was predicted in 1991),” Ringbauer stated, “how many effects become possible, which are forbidden in standard quantum mechanics. For example it is possible to perfectly distinguish different states of a quantum system, which are usually only partially distinguishable. This makes quantum cryptography breakable and violates Heisenberg’s uncertainty principle. We also show that photons behave differently, depending on how they were created in the first place.”
We simulated a photon that traveled to the past and was allowed to interact with its past self. We used single photons to do this, but the time-travel was simulated by using a second photon to play the part of the past incarnation of the time travelling photon. No worm-holes are required!