When I think about time traveling, the "Grandfather paradox" stops me. Because it makes loop. So if we avoid entering the loop we can get some results. As time is relative concept, so can we talk 'time' in respect to to person or living. I mean to say let me explain it with example; like if we take person in outer space in any device and capsule and their "24hr" equals to 365years of Earth. So when they will come to Earth, the century of Earth will change and many generation also. For them they will do the time travel(as they pass many generations and for them they are in future) and for Earthians they doesn't exist in reality for these time. But if we make something like this we can make survival of exiting livings in future. This is not time-traveling but time-lapse.
I know this is not so convincing but can we think about this also? Because through this we are not entering in paradox basically.
I know this is not so convincing but can we think about this also? Because through this we are not entering in paradox basically.