In recent weeks there have been advances in the research of the dimension of time, you can travel to the past answer, yes, we humans can travel, answer no, even what we know is an effect that only happens in the quantum world, we could in the future reproduce those effects of the quantum world on the scale of the world in which we live and travel in time, perhaps as Master Yoda would say "difficult to see, the future is always moving", at least we need to know at least the properties of the time dimension and its effects since it has impact on our lives, for example, global positioning system satellites, whether GPS or the European Galileo system.
Both satellite systems orbit the Earth about 20,000 km away and there the curvature of space-time due to the mass of our planet is less than on the surface. According to Einstein's general relativity, clocks that are closer to a massive object move more slowly than those located further away from said mass. In satellites it means that time goes faster than on the surface of the Earth, at a rate of about 38 microseconds per day. If that factor is not taken into account, temporal distortion errors in the measurement of distances will accumulate until they reach kilometers of error.
Trying to follow a route by car with a GPS or Galileo would be impossible or take off from the Oakland Airport, the quantum world if we could reproduce what happens there on a macroscopic scale would be amazing, the curious thing is, the quantum world is within us, we are built by the quantum world, it is part of us, it is not another separate universe, we are that universe or that manifestation.
Maybe the real thing is the quantum world and we are only a manifestation of that world, in a matter of time each planet or Moon has its own, since it has a different mass and that means that time passes at a different speed, for example the moon has a smaller mass than the Earth, that means that time passes faster, about 56 microseconds for each day on Earth, it is an insignificant difference for a human, a person who lives 80 years on the Moon would be 1.6 seconds older than another person that he spent those 80 years on Earth, but it is a substantial difference to cause problems in communications between the Earth and the Moon.
Or failures in the computers that work on the future lunar base, to solve this, NASA announced in April of this last year that it would create a special measurement for time on the moon, these effects are due to time dilation, something that in the future we will be able to control, at least thanks to Einstein we know why it happens and we can calculate it, apart from the fact that we are suffering from it, we are seeing it in space satellites, but time dilation is not the same as time travel.
Time continues to appear to move in the same direction towards the future, only at different speeds depending on the observer who is affected by time, by that mass or by the speed and if we created or traveled to a place with extreme time dilation as for example seen on the planet Miller from the movie Interstellar, where one hour in that world was equal to 7 Earth years, we could spend one day of our time within that dilation and leave 168 years in the future.
It would be a trip to the future, but without a return ticket, you would be in another present in the present of the future, you could not return to your past, so the big question is what happens to the dimension of time.
! The truth will set us free and science is the one that is closest to the truth!
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