“No matter how far apart you took these to connected objects from one another, if they had enough mass/energy – of both the positive and the negative kind – this instantaneous connection would remain.”
The wormhole would need to be constructed in a way that would allow one end to remain stationary while the other end travels at almost the speed of light.
For example, if the end of the wormhole is 40 lightyears away from the stationary beginning, the journey through could be instantaneous, but to reach the end 40 years of time would have passed.
Mr Siegel writes: “If, 40 years ago, someone had created such a pair of entangled wormholes and sent them off on this journey, it would be possible to step into one of them today, in 2017, and wind up back in time at the mouth of the other one… back in 1978.
“The only issue is that you yourself couldn’t also have been at that location back in 1978; you needed to be with the other end of the wormhole, or traveling through space to try and catch up with it.”