Question

Why travelling back in time is not possible, is there really parallel world, and if it becomes possible what will you change at first going back to time?

Answer 1

Answer:

it is possible but by a device but scientists however have not came up with one yet it might be invented in the future. If I had to change anything I would like to change my place of birth but have the same parents

Explanation:

Mark my answer as brainliest

Answer 2

I too, don't know the answer but if you wanna know just go to Thanos or Dr. Strange

They have every answer to your questions mate.

And you're getting into sci-fi very well.