Like secrets can be kept by governments or scientists in this era, if it was real we'd be hearing about every other week. Maybe the closest we have to space-ti

Like secrets can be kept by governments or scientists in this era, if it was real we'd be hearing about every other week. Maybe the closest we have to space-time "modification" is gravitational time dilation, where the further you are away from a massive object the faster time moves (or actually the opposite way around). Hence satellites like GPS and even astronauts are out of sync with people on the surface of the earth. https://en.wikipedia.org/wiki/Gravitational_time_dilation https://en.wikipedia.org/wiki/Gravitational_time_dilation Now imagine if you could get a spy satellite several seconds into the future from the surface of the earth and yet still have realtime communications somehow back to the earth. Then you'd have something rather interesting.