In some models, time is like some kind of wave motion. Everything that we see happened in the past. So if time is wave motion or some kind of river. That explains why we can see only the past. If we think that the energy level in the past is higher than future. We have a hard-to-send wave motion against that flow. If we are raising our energy levels we will make the difference in those two energy levels smaller. And that makes the river of time move slower. So if we want to see to future we must make energy level of some point in future higher than the point where we are. The reason, why we see things that happened in the past is that the energy level in the past was higher than it's now and future. Even a microsecond and shorter time units are time. So what would we need to do that we could see to the future? The answer is that we must send wave motion against the flow of that river. And that means we must make two points at two different times. And then we must make ...