Scientists reverse time using a quantum computer [Q computer?]
(www.youtube.com)
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If she offers you peach mints "Just say no"
ehhh....with our luck, it would have holes in it.
Quantum time-reversal is technowoo gobbledygook to fleece taxpayers.
Here's the food-coloring version of it. It's 85% undone!
Forget the speed of light being relevant to physical time travel. That would potentially kill a human body. Concentrate on the concept of transmitting information only from future to past (our present). The internet exists here and there - Q is perhaps data sent backward in time based on facts existing in the future. Future proves past. However, even little changes would change the outcome. Therefore once a better future had been molded "Q" would no longer send data. Q could only be right until facts began to change.
I’m convinced that time messaging exists. If scientists in Moscow and at Princeton can send light or particles a fraction of a second back in time with their relatively limited resources, I’m sure some classified program in government can at least send a Morse code message back years into the past.
What you are alluding to is the speed of light in a vacuum. Evidently, we are not in a vacuum, hence the speed attainable is always lower than that due to resistance.
What is light?
They communicate instantaneously. The carrier (photon, electron, particle, etc) is entangled to another carrier, we measure the spin of one knowing it is entangled with the other (multiple times) and determine the states of each knowing that both will have opposite states when entangled.
Maybe. But it sounds like even going back a fraction of a second leads to 15% different time lines even in this somewhat adiabatic system.
Nono, that is memory.