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Forward Time Travel for Information: This is already a reality, thanks to relativity. According to Einstein’s special relativity, time slows for objects moving close to the speed of light. If you send information (say, a signal via a superfast spacecraft or a laser) at near-light speed, it experiences less time than the rest of us. For example, if a signal is transmitted from a probe moving at 99% the speed of light for 10 years (from our perspective), it might “age” only a few months, effectively “traveling” forward in time relative to Earth. NASA’s Voyager probes, zipping through space, carry data that’s technically aging slower due to their velocity—though the effect is tiny at their speeds.