Time Travel by Definition

Time Machines by definition

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Let’s assume we observe a particle moving through space at a constant speed going through point A and then point B. What would we expect to see if our particle will go back in time? I guess we’ll agree that we’d like to see the same particle moving back through B and then A. The equivalent of this back in time movement we could obtain simply by reverting the speed vector of the particle. If we increase the reversed speed we might even pretend the particle is moving fast backward through time. So we can conclude that we can build a time machine by reverting the speeds of the subject particles.

Obviously we’ll need some energy especially if we want an accelerated time travel. But the real problem in building such a machine will be the knowledge required to identify all movements of all particles in a subject and to apply simultaneously synchronized forces to all particles in the system to make the whole system revert all internal movements.

If we’d like to send a human back in his/her own time, We should know precisely all vectors of all particles in his body and apply precisely the opposite force to move in a synchronized manner all particles back in their own time. this should result in reversed processes which could be described to some extent as rejuvenating.

But wait, unfortunately, if we want our hero to go precisely through his previous memories, we’ll have to bring back in time a whole lot more particles for all his historical interaction with anything outside his body. And since there are plenty of interactions the amount of particles to get reversed will soon be just beyond our imagination to count not to mention the need to find them and reverse the movement of all of them and any others which interfered in their past.

Pretty soon we’d find that we might have to reverse the movement of a good chunk of the particles in the universe. Just consider the fact that the Sun and Moon who had some influence to the movements the have to be back in their previous positions at the right time and since their movements are related to other celestial bodies, in fact many of them if not really all…

So let’s assume we somehow can identify and modify the speed simultaneously for a good chunk of the universe if not all of it. the problem now will be not only that we’d need another universe of energy to make our universe go back in time but we’d also have to deal with the issue of the observer who’s as linked to the universe as the subject and who should be left in his own time to confirm the time travel and check it against his/her memories.

I guess this could be another explanation why a true time machine cannot be built.

However in a digital system where records of all movements/changes are properly captured, we could imagine reverting the changes, quite similarly to the safety features helping us return from improper system settings. Those limited time machines can be and are built relatively cheap.

We should explore in some other post how parallel times can be simulated based on different decisions in the past. And keep in mind this is working just for eSouls. Prepare to become one!