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Even though I am rather ignorant and most probably an anathema in the eyes of naked scientists, I still dared to start this topic, being more than aware Iíll not receive a Nobel Prize. If time travel is possible, it can occur many times, that is, it is possible to radically change events and so induce many possible futures. These possible futures, I suppose they are parallel universes since a particular universe is being duplicated each time a time travel occurs and changes are radical.
However the question is still open because physicists have realized a way to do it but it requires the use of two cosmic strings passing each other and that's not something one can control and nobody has ever detected a cosmic string yet.
Suppose a particle was sent back in time.
That time travel seems to imply a different future than the one that already occurred is one of the reasons physicists don't believe its possible to travel back in time.
The nature of time is an accumulation of beats. Formally the time is 3:00, 9-20-2016.
We don't know what "time is" let alone its nature.
Quote from: phyti on 20/09/2016 18:25:04The nature of time is an accumulation of beats. Formally the time is 3:00, 9-20-2016. The "nature of time"? You know this?All we know (if we do) is what time does.We don't know what "time is" let alone its nature. "time" is a word that was invented to cover and describe events and phenomena. I would hazard it might have as many meanings as the events and phenomena it applies to .If we can classify these events and phenomena to a very small number of types then perhaps we will have an opportunity of getting a closer look at what is going on.
"The fact that some people and animals may experience time at different rates is caused by the different speed of data treatment, not a different basic time. Though it might be really different in the context of Einstein's Relativity (relative speed and gravitational potential), it is not subjective."
Might you provide a link or a reference to that idea?